Heat stroke

Cool ASAP using water and fans. Splash all over with water or immerse in water.
Heatstroke (acute hyperthermia)
www.mayoclinic...
Prolonged exposure to hot (often humid) environments
Physical exercise in hot environments
104 °F 40 °C
105.1 °F 40.6 °C
A medical emergency
Disorientation
Can quickly damage brain, heart, kidneys, muscles
Damage worsens if treatment delayed
Symptoms
High body temperature
Altered mental state or behaviour
Skin, often hot, red and dry at first
Nausea and vomiting
Tachycardia
Tachypnoea
Headache
A medical emergency
Get help and get them cooled
Factors
Excess heat production
Exercise
Excessive environmental heat
Sun
Humidity
Impaired heat loss
Clothes
Dehydration
Alcohol
Risk factors
Young children
Over 65s
Lack of time to acclimatise
Lack of AC / fans
Meds, beta blockers, diuretics, antidepressants, antipsychotics, amphetamines, cocaine
Chronic illnesses, heart or lung disease, obese, unfit
Prevent
Good hydration
Loose fitting, lightweight clothes
Prevent sunburn
Delay workouts
Rearrange work schedules
Parked cars
Take time to acclimatize
Science
Hypothalamus set point is normal,
but is overwhelmed
Failure of thermal homeostatic mechanisms
Unlike fever where set point is deliberately increased by cytokines
Enzymic function
Pro inflammatory cytokine release
Inflammation
Damage to vascular endothelium
Intravascular coagulation of blood
Thermal coagulation
Disruption of intestinal barriers
Heat exhaustion

[@marcmelvin3010]

I had a full-blown heat stroke while working In the engine room of a Navy ship in the Persian Gulf, more than 40 years ago. The temperature in the lower level was usually between 95 and 120 F, and we usually spent 18 hours a day down there. We ran aground and went to emergency power, which shut off the ventilation to the lower level. My last memory was of everything looking oddly brown, and then nothing. A shipmate saved my life by carrying me over his shoulder up multiple levels, and dumping me in a 100 gallon vat of iced tea. Two days later they sent me right back down there. Over the years I have learned to watch for the onset of a second bout. If I get really hot, I stop sweating, and start to feel sort of disembodied, so that I either jump into our pond or run the hose over myself. The damage seems to be permanent; don’t let it happen to you.

[@user_375a82]

Sailors always have good stories.

[@kennethbain4290]

@@user_375a82 That's got to be the best ever British story of how "an ice cup of tea" saved the day..! 😅

[@romeob.8369]

The worst than heat stroke is, when Americans keep using Fahrenheit instead of Degree Celsius or at least writing both, we in central Europe have been using °C for decades.

[@june2420111]

Wow, what a hard job you had sir. Respect to you.

[@roberthuntley1090]

I remember being in the engine room of HMS Fearless, when taking part in a Nuclear/Biologic contamination prevention drill; which meant shutting nearly all of the ventilation down. We got up to 60 degrees C with very high relative humidity. The control cubicle was air conditioned to a more tolerable level, but for routine rounds of the machinery space itself people were rationed to 10 minutes at a time.

[@divemor]

As a Florida resident I often find myself procrastinating and avoiding work around my house and yard (especially in midday Summertime). Thank you for this presentation it will go a long way to ease my guilty conscience about these avoidances.

[@crispy9175]

I'm doing it right now in FL too. Lmao. I'll go finish the garden this evening or tomorrow morning.

[@LindaGailLamb.0808]

Darn it, that yard work _has_ to be done... but there's no law that says it has to be done at high noon. So go ahead and put it off til sundown.

[@AwayGoalRule]

Love how you gave a “warm welcome” to this talk. 🔥

[@annewalter5024]

Thank you, Dr. John for reminding us how to take care of ourselves and others during these heat waves! ☀️

[@dianarutecki9810]

Welcome to Australia summer. Lol stay indoors. Lots of water and get the garden sprinklers going lol

[@JACover-by6kp]

This is hugely helpful, and timely - and important. I’ve had serious heat stroke twice, and it’s nothing to take lightly. I have noticed that as I get older, this creeps up on one more quickly. Thank you so much, sir - for this, and (of course) all else, in this pandemic. You’re on the side of the angels. - j.a.c.

[@esecallum]

your attention seeking.. enuf for the grave

[@valeriegrimshaw1365]

Yes the homeostasis goes awry when we get older.

[@SandandInk]

I live in South Florida for 30 years - first time I am hearing such a great explanation of heat stroke - -thank you!!!! with high school boys that are made to work out in the heat - I am going to share this info with them

[@ronniewilliz153]

Keep pickles on hand it'll help a lot an help them not cramp up. Or packets of salt it help retain water. Im born an raised in FL too. Going on 32 years old down here

[@zuzuspetals8323]

A nurse advised that to cool rapidly, apply cold packs under arms and to groin-lots of lymph nodes. Thank you, Dr. John!

[@captsorghum]

Not sure how well that would go over with an agitated or combative patient.

[@zuzuspetals8323]

@@gferraro8353 Great job! 👍

[@linda.p.8540]

@@captsorghum just try

[@dodgeplow]

@@captsorghum The ones I treated were weak and confused. Outright combative is rare. If so, you just get a lot of help and restraints and treatment helps - no different than combative for any other medical reason

[@ricks200192117]

The cold pack in the groin is the most important, that cooled me down faster than anything.

[@I_Am_SciCurious]

I live in Arizona and it’s currently 114°. Amazingly, there isn’t a lot of detailed information on heat stroke symptoms in the media or displayed in public here. Thank you for the information. I hope I never need to use it, but it’s reassuring to have.

[@ajs41]

It's never been more than 101.7° here in England. Looks like that will change on Monday and Tuesday.

[@thesiren6620]

How will you live there when lake Mead dries up?

[@ministryofpeacekmk]

@@thesiren6620 They don't know...they will move like sheep if/when told to do so, lol.

[@ERROR-CitationNeeded]

It's probably because they're expecting people to just die

[@trinitytwo14992]

UK and North West Coast North America traditionally do not have any air conditioners. That is why over 600 people died in British Columbia during last years heat dome.

[@kariannecrysler640]

Friendly warning: my hubby spent a long sunny day fishing on a boat. Surrounded by water and only soda pop to drink. After about 6 hours they were all feeling horrible and hubby was showing all the symptoms Doc covered. I had him sit in the lake while they trailered the boat then got him home. Made him sit in his underwear in front of the air conditioner with a glass of ice water. It took weeks for him to get his strength back. So even idle heatstroke can happen. Take care

[@Giulia-yq4nj]

Ou have to detox the body by graphene, of you do the optic analisi of Blood with Dark background the globules are eletrified and surrounded and get sticky by graphene, please contact Comitatoascoltami, Italy.You have to contact and immunologist and detox all your body, very quicly

[@bethhentges]

It’s common for folks who are boating or canoeing to gorget to drink water because they are surrounded by it. I have noticed that one of the first symptoms if folks get just a little bit grumpy. I have seen it many times.

[@sumiland6445]

Had heat stroke twice ... more likely when you've had one. Damages kidneys. Weeks to recover. Now my brain can't regulate body temp so I can't be in heat very long, or I feel sick, weak and have to cool off fast. Poured a cold bottle of water over my head once. Be careful! Watch for people around you, too. Heat stroke is serious ❤

[@srm9167]

It’s the most common place to get heatstroke. The water is constantly reflecting the heat. Soda is a big no no it dehydrates you. You did the right thing by making him sit in the lake.

[@crystalmasters8582]

Have to water

[@ByDesign333]

Heat builds up in your body when high humidity intensifies the heat buildup in the body and head. Cooling breaks must be taken "whether needed or not" every so often under such conditions of hot /humid. Very useful talk...thanks, my lady keeps warning me...a retired nurse.

[@ministryofpeacekmk]

@@gordythecat 😅🤣

[@ministryofpeacekmk]

@@gordythecat Oh my goodness! 😭😅🤣

[@alyscstudjo6909]

I live in Jamaica without a/c. Here are some tips and tricks that work great to stay cool. -Put some damp dish towels in the freezer , rolled up long ways. Wrap them around your neck and/our lay them on your chest -Make your own Gatorade- teaspoon or less salt. spoonful of sugar and lime in a big glass of water and a little ice! OMG! Amazing, you pep right up. (only when you're really sweating) -freeze a gallon jug of water and set it up in front of your fan or put your feet on it -Bowl of ice water and wash cloth and constantly wipe your body down -Night time heat wave- put sheets in the washer and use them while still damp with the fan on you! You'll cool right down and they'll dry quicker than you think... before you know it, it's morning time! Most important thing is to stop doing anything just before the heat of the day kicks in!!!

[@codedesigns9284]

As a military veteran, I would only like to add to what Dr John stated on hydration. If the temps are beyond your personal threshold, keep an eye on your sweating. If you stop sweating, this is not good. Your body is too depleted of water and it can’t sacrifice any more towards sweat. Hydrate in small amounts even if you don’t feel thirsty. Please be sure to add a little salt to your water, or eat a few salty crisps/chips while hydrating. If you add salt to the water, you shouldn’t be able to taste it, just a very small amount to replenish what is lost in sweating. Many cases that end up in ER are not because the person is not drinking, it’s due to lack of salts. If you are drinking lots, but no salt, this can lead to nausea, vomiting, and saline IV at the ER. Love to you all and God bless!

[@gracejuliearcher3713]

Yes 🙌 add a little pinch of salt to your water

[@marmaladeyuki]

This is how I was trained in the navy as we sailed around the tropics for weeks on end. Drink lots of water and add salt. Our salt tablets were chocolate coated.

[@Emmabruceofficial]

I Litre of water + 1 tsp sugar and 1/2tsp salt = equivalent of hospital Saline rehydration bag.

[@RollTimeratYT]

Hearing a lot from the weather/news media here in the southern USA about "staying hydrated"--i.e. drinking lots of water. They never say anything about replacing electrolytes--salts, minerals, etc.

[@amyhoang9140]

Lots of people don't know this. Plus, people nowadays drink filtered water, which has no electrolites and will get them in trouble faster. Also, add both a little sugar and salt would help your recovery as well (especially, if you have diahrea).

[@kellyfrost1052]

Dr. John, thank you. Had heat stroke last night and had no idea until I listened today! You have been a part of my daily life for three years now and I continue to be grateful!

[@sheilajones4491]

Such great advice i got heat exhaustion in thailand, did not know what was wrong, felt dizzy faint and sick, my friend got me inside and i had lots to drink took an hr to feel better. It is surprisingly insidious. Retired nurse here

[@perfectlymprfct]

Thank you! My good friend had a heat stroke when we served at Fort Polk, LA with a core temp of 105 degrees Fahrenheit. She suffered a heart attack and almost died. We were in the midst of a 4 mile run in formation. She was delirious and was physically moving her arms and legs as if still running an hour later in the Emergency Room after a MEDEVAC. She is well as can be today, but suffered permanent neurological and cardiac damage.. Why? She refrained from drinking water because we had a weigh-in after the run. Be safe out there. I'm in San Antonio TX and do my exercise at 6am. It's been very hot and dry here. Even the cattle and deer are doing unusual things to get water and food.🙏🏽

[@btbingo]

Was in Ft. Polk in 71. We were prohibited from running above 78 degrees. We're give salt tablets and ordered to drink water every hour.

[@esecallum]

friend is stupid

[@romeob.8369]

The worst than heat stroke is, when Americans keep using Fahrenheit instead of Degree Celsius or at least writing both, we in central Europe have been using °C for decades.

[@mbak7801]

@@romeob.8369 Farenheit is a wider scale so more accurate. People normally live between 1 and 100F so it is intuitive as well. That is -18 to 40c ish. Many decimal systems are clunky as hell. The old GBP could be divided by (1,2,3,4,5,6,8,10,12,15,16,20,24.....) got bored checking them. Then we got metric money and cannot divide by 3!! Massive fail. Then Europe came up with 100 seconds to a minute, 100 minutes to an hour, 10 hours to a day, 10 days to a week and three weeks to a month, all this failed miserably. That left 5 days a year spare!!. The stupid fixation with 10 because the peasants only had 8 fingers and two thumbs so could not be expected ever to count higher than 10. Oh my god is all I can say to that.

[@rowenatucker7983]

Thank you for sharing to alert others!

[@traditionalgirl3943]

I was in my mid-twentys sunning in my backyard in SoCal. When I sat up I knew I was in serious trouble.”; lightheaded, nauseous, shaky, heart racing. I barely crawled to my shower and with my last bit of strength turned the cold water on and just laid on the floor of the shower. What a blessed difference that made. I realize I could have died. I am so much more careful now. Thank you to my Guardian Angel!

[@k1mgy]

This has always been a primary concern at the BAA Boston Marathon. I've seen it up close and personal. Our protocol is as you state. Ice baths are often used in our medical tents. In the field, I've had to use cold water, disrobing, and fanning to help patients before transport. Lots of lives have been saved as a result of recognition and rapid treatment. Thanks for covering this topic so well!

[@jamesnguyen7069]

just part of their plan to figure out the depth of the human body...

[@billyhomeyer7414]

Yup, once in a while the Boston Marathon in April can have temps over 80degF. Cloudy days, light wind, 55degF perfect!

[@Kuk0san]

Andrew Huberman has talked multiple times about Glabrous skin surfaces that can be found on the palms, bottoms of the feet and the face, which allow faster cooling or heating directly to the core body temperature. Just mentioning in case it can help in your work and you'd like to look further into it!

[@billyhomeyer7414]

@@Kuk0san feet and hands in ice water with drink of cool water? Rapid treatment?

[@BobJoy_my_collection_of_stuff]

i often deal with the opposite , HYPOthermia , disrobing is a waste. waist high bath tube water is perfect.

[@deannadove3505]

Very useful and easy to understand advice DR C. I live in Florida and last week we hit temps over 100'F with humidity factor making it feel 110 F. You made a great point to include the mental affects. Sometimes, a person in this situation can be really resistant to any offer of help but one just has to insist. It's a serious issue. Thank you for all you do.

[@romeob.8369]

The worst than heat stroke is, when Americans keep using Fahrenheit instead of Degree Celsius or at least writing both, we in central Europe have been using °C for decades.

[@patriciafarrow9586]

Do you call it the "DeSantis" effect ?

[@BritAcrossThePond]

@@romeob.8369 as a Brit now living in Florida it’s really not that bad using F, I’m used to it regarding weather temperatures

[@deannadove3505]

@@romeob.8369 What's your point Romeo? Criticizing which measurement system US uses can't possibly your point.

[@mew19forever]

Native Texas girl here, and let me tell you, even for Texas it's been hot this year and little to no rain since mid May. We've had excessive heat warnings every day for over a week in central Texas with temps dangerously high at over 110°F with heat index as much as 114°F. We had a little break yesterday, a "cool" 99°F . Being ten degrees cooler, i really felt it, felt great- i had to put on a sweater! Today , we're right back in the oven and we will still have hot temps here till about late Sept. some years stretching into mid Oct. Be safe everyone, stay cool and drink lots of water, do things in the evening after the sun sets or at night. Take care of each other. Thank you for the informative video, Dr. John. I hope we all get a break from the dangerous heat.

[@JBoy340a]

I have relatives in the Austin area, and they are talking about the heat. My relatives say even jumping in the pool does not cool you off because the water is so warm and humidity so high. They are worried about what they will do if the power fails which ERCOT has been warning about. No A/C or fans, 105 degrees, and high humidity are a deadly combination

[@Ottee2]

You've reminded me of a time when my girlfriend and I were traveling around Texas on vacation. One day, we were in San Antonio to visit the Alamo, of course. And while we were down there, we came across a county fair, or some such thing. There were all these young guys milling around, dressed as Confederate soldiers, with muskets, etc. Now, this is mid-afternoon, in blazing heat, and these guys are dressed in thick wool uniforms. I remember talking to one of the young 'soldiers', and asking him how he could stand being dressed like that. He looked so hot and miserable.

[@colingeer479]

I really appreciate your help and advice Dr. John. You give excellent advice and accurate information in an easy to understand way. By following your regular talks I have actually increased my knowledge and understanding so much and it's very welcome! Thank you so much!

[@tracymoore4159]

Such a knowledgeable man. You have taught me so much in all areas of your posts.

[@glenncostello4486]

Whilst in the Australian Army I suffer from heat stroke. Rehydration and salt, particularly salt, helped to recover in 24 hours. Great podcast. Very important info for those who live in cool climates (usually). Glenn from Ozz

[@alfredopampanga9356]

He puts much emphasis on liquid and omits electrolytes until near the end where he seems to imply that only under some circumstances does one need electrolytes Following his advice can be fatal. btw the Aus Army can be quite boofy when it comes to these things

[@Dez083]

@@alfredopampanga9356 really how so?

[@sheepseven7588]

@@alfredopampanga9356 so true

[@bronw8657]

No heat stroke here at the moment in Australia. 😅 This would be one of the coldest winters I remember. I can't wait for the heat! My digi blood loves the hot westher 🥰

[@suewright1299]

@@bronw8657 Be careful what you wish for Bron, memories of Sydney come floating back! 😮 Let’s hope you get a normal summer. Take care 😊

[@G4GJL]

Just brilliant. Thank you for this video, John. It should be shared widely for all to see, here in UK and elsewhere.

[@elaineellis3780]

I'm learning so much from you Dr Campbell. So thank you. Keep up the good work.

[@rupalishankerarthub]

As someone who has lived all their life with late temperatures in late 30s and early 40s celcius in summer we can recognise symptoms of heat stroke fairly easily and early. Here are the most common symptoms of heatstroke - headaches, nausea, vomiting, diarrhoea. temperature. Below are the points for protecting yourself from high heat:: 1. Avoid being outside between 10 am and 5 pm - best option. Kids to be especially careful. 2. Fluids - double the fluid intake. No carbonated drinks, no coke no Pepsi no alcohol and no cold beer does not really help if you are exposed to heat. Cool water with lemon juice and sugar several times a day. Note cool not iced water. 3. Dehydration is your biggest enemy in the heat - if you are dehydrated go to the pharmacy and get an electrolyte sachet. Dissolve it in 1litre of cool water and drink up slowly. In my country we get these in tetrapacks. As the doc says in this video - your urine should be light in colour not dark and you should be urinating frequently. 4. Head and ears should be protected while outside. Eyes as well if your eyes are sensitive (that's why in cultures with high heat folks wear complicated head gear and women cover their heads) 5. DO NOT run, jog or exercise in the day time in the sun (i.e. between 10 am and 5 pm) 6. Wet a cotton towel and wipe your face behind the neck, behind your ears regularly if you are outside. Alternatively, spray your face, neck and the top of your head with a spray bottle - again cool not iced water. 7. Wear cotton clothes - best way for your body to breath. Polyester, rayon, nylon all enemies of high heat. 8. Do not suddenly drink or wash yourself with water from the fridge or iced water if you have just come inside from high heat. 9. If you don't have an AC buy a light thin cotton bedsheet in color green or blue wet it, wring it...add eu de Cologne if available and hang it on the curtain rods and open the windows and switch on a fan....this will cool your home as long as there is no direct sunlight. I don't know the science behind this but we've been doing this for centuries. It's really sad that I hv to write this on a thread to folks in the UK. God knows what will happen to us here in my country. We can probably cook in the sun in a couple of years. 😀😀😀

[@NicholaWallace]

Science behind the wet sheet cooling the room is that when the water in the sheet evaporates it takes heat out of the surrounding air. That's how sweating works. I'll note that a red face is also another sign of heat stroke. I saw that when hiking at Grand Canyon.

[@rupalishankerarthub]

@Nicola Wallace yes a red face could be a good sign of heatstroke. You see we South Asians are brown skinned ....so our faces never appear perceptibly red.

[@weegie558]

Great timely information John. I've seen it in Afghan where lads would collapse and become almost delirious and had to be rapidly cooled. Its not something we're used to in the UK but anyone working in EMS/ED please be aware of the early symptoms when you're working in full PPE especially during an arrest or extracting your patients. I experienced a mild case last summer on a working arrest in a bathroom. I'd neglected hydration and became very confused and my head went a bit fuzzy and my legs became very cramped but I ignored it/didn't recognise it and worked through but became really quite unwell and very tachy about 15 minutes after first realising something was wrong and almost collapsed down a flight of stairs. I thought I was just dehydrated and took on some diarolyte but I had to strip off and ended up going home unable to finish my shift, thankfully I was with an Aussie who knew what was going on and he probably saved me from going man down. Should have known better, but the onset felt quite rapid. Look after yourselves and those around you folks you're no good to your patients if you become a casualty yourself. Anyone with young kids or elderly relatives be aware as they can go downhill much quicker as they struggle to regulate their temperature, if you recognise the symptoms get help.

[@bordersw1239]

My daughter’s a student paramedic, experienced the same trying to extract a patient from a tiny room upstairs to the ambulance. There was a thermometer in the room and she watched it increase by 4 degC as they worked on the patient. Took 5 of them to get the patient out of a series of narrow stairs and over a wall. She was decidedly unwell afterwards, the other paramedics made her eat and drink and she gradually recovered.

[@lestermarshall6501]

As a former EMT I totally agree. One other John didn't mention. If the humidity is high enough sweating stops cooling you down because it isn't evaporating.

[@EricTD1995]

I work at a grocery store as a cart attendant. Every summer, my job requires me and every cart attendants to wear shorts (select colors), go inside the store for cooling down for a few minutes, and we can get ice cold water from the store's cooler. Thanks for the info, Doc.

[@hnd2893]

We used to go hang out in the walk-in freezer after a cart round up :O)

[@RunninUpThatHillh]

Sounds crazy, buy I learned you might drink lukewarm or slightly cold drinks..your body receives the cold drink and heats up to take the chill off the ingested liquid.

[@chchwoman9960]

@@RunninUpThatHillh Yes true, a cup of tea is good

[@chchwoman9960]

I'd love that job

[@RunninUpThatHillh]

@@chchwoman9960 unfortunate since the ice cold drink is so great when it's hot. haha! i love to drink hot tea all summer tho :D

[@michaeljohn7398]

Excellent Discourse on this very important matter. Having experienced Heatstroke to the point of total collapse, your discussion rings true. Cheers from Michael. Australia.

[@Mobleymoon]

Your lovly...thanks ! I could listen and take notes from you ALL DAY LONG! What a wonderful Teacher! Thank your wife, for sharing you with all of us.

[@laurenhall1070]

The news needs to post this daily for people to be aware and to help others! Thanks Doc, you really ❤ care about people!

[@bradkaral1188]

Another great video from Dr. Campbell. Thorough, detailed, but easy to understand.

[@thomasmusso1147]

Good Morning Dr Campbell .. An interesting topic and quite relevant at the moment .. thank you for that. Something to add if I may please? Those who have worked in the South African Mining Industry .. myself, Deep Level Gold Mining (2000m + underground) are fully aware of the hazards of 'Heat Stroke' .. with having had Training in the Identification of 'Conditions Conducive to Heat Sroke'. Put simply .. an environmental 'Wet Bulb' / WB Thermometer Temperature of 27.5°C and above (where Regulatory Formal Precautions .. Codes of Practice, Procedures, Standards, etc, had to be taken in the Management of Heat Stroke .. Prevention / Identification / Treatment) and with an upper limit of 32.5°C WB being the cut-off where the workers had to be withdrawn from the specific workplace until the environmental condidtions therein could be brought back to within standard. 'Ventilation'. Properly ventilating / increasing the flow of fresh air through the affected area was generally the means of cooling it down. Thus .. even environmental temperatures well UNDER 30°C, should the air be saturated / very humid, can constitute a hazard. As a Certified 'Acclimatisation Technician' and having worked with and under the guidance of the South African Chamber of Mines Research Organisation - Industrial Hygiene Division, herewith some additional handy tips for the layman .. everything that you have stated being correct and relevant: * 'Heat Exhaustion' is not 'Heat Stroke' .. the former being more common, normally preceding the latter and easier to recognise and treat. 'Heat Stroke' can only be formally diagnosed by taking Tissue Samples .. unfortunately all too often from the deceased or, very least, brain / organ damaged. * The most accurate means to measure body temperature is rectally .. thus the specialist Mining First Aid Kits (and my current) containing only those. They're much more robust anyway Again, added to that already said .. PREVENTION: Vitamin C / Ascorbic Acid, has been found to assist in natural body acclimatisation to and performance in, heat. 250mg per day. TREATMENT: * Must start IMMEDIATELY and be MAINTAINED for at least TWO Hours until the Body Temperature (ideally rectal) has fallen below 40°C .. or TRAINED Medical Assistance has arrived. Please note, 'TRAINED' means exactly that .. in the SPECIFIC Recognition and Treatment of Heat Stroke. Stopping treatment and just bundling the Victim into an Ambulance followed by a sometimes lengthy trip to Hospital can do more harm than good. * Move the Victim to a SAFE shady / cooler spot. ICE BATHS .. CAREFUL! In unqualified hands they can be counter-productive .. more on that later. * Strip them to the bare minimum .. ideally naked if possible. * Sprinkle the body with water (not drench) while directing a flow of cooling air over it ..fanning with an item of clothing / newspaper / etc, electric fan, compressed air, whatever. This will, as you explained, stimulate evaporation and subsequent cooling of the skin. * Massage the body / skin from the body extremities towards the Heart. This stimulates Capillary Blood Flow .. the now-cooler blood from the skin surface back into the Circulatory System towards the Heart, Organs and most important, Brain. * Monitor the ABC .. namely Breathing and Heart. The victim could be unconscious and CPR may be necessary. * Should the Victim be conscious and aware, give water to drink and reassure. * Beware of 'overcooling'. Reduce / stop cooling should 'goosebumps' appear on the skin. Overcooling can result in blood capillary constriction, reduced blood flow to the skin surface and thus negatively affecting 'venting' of body heat. That is why Ice Baths 'could' possibly be counter-productive in that the skin cooling mechanism may 'shut down' and the internal (stil beingl generated) body heat remains contained deep inside where it will do the most damage. * Maintain Treatment for at AT LEAST two hours until the body temperature has fallen below 40°C and REMAINS consistently so and / or TRAINED Medical Assistance has arrived. * Once the Victim is stable, cover lightly and wait for transport, etc. I hope that this will be of some assistance to those out there. Awareness .. being able to recognise heat-related symptoms and applying correct counter-measures go a long way in the mitigation of this issue. Take care ..

[@luciarixon1857]

Thank you for this great and detailed addition so important people understand how dangerous these wet bulb temperatures are. Unfortunately the human body is extremely fragile 🌞

[@thomasmusso1147]

@@luciarixon1857 👍

[@dougcsmith]

I am 75 years old and live in the Southern Nevada desert. Most every day I run 7 or more miles at 40-45°C with no problem. But I take precautions such as starting out soaking myself and drinking hydration (400 mg sodium per half liter of water) at a liter per half hour of running (or more). I was running with a much younger man who is an ultra runner and he collapsed with heat exhaustion! I did not feel hot, stressed, or tired at that point but I had drunk 4 times the water he did. I would be happy to be virtually interviewed to go over in more detail the precautions I take that allow me to run in these conditions. I run on days where there are excessive heat warnings and people are warned not to go outside except for short periods of time. I wear tight running clothes because they get wet with sweat and keep me cool. Loose fitting clothes don’t cool much because the wet fabric needs to be in direct skin contact to provide any cooling!

[@neneeq8533]

All good advice Dr John. A have worked as a Geologist for over 35 years and always in the hottest deserts or hot and humid jungles in more than 80 countries. I've seen people die of heat stroke when it was preventable. I have routinely 'chewed out' the men and women who work for me for not adhering to some simple rules of the bush: 1) Always carry more water than you need and force yourself to drink every 15mins (I drink up to 20 litres during the day on some jobs... about 25% of my body weight, but always over 10 litres a day). Never leave the safety of the camp or vehicle without an excess of water. If your pee is darker than pale straw yellow you are dehydrated. 2) Wear light cotton clothing that is at least two sizes larger than you would normally wear. A low denier cotton will allow a breeze to flow through. No long pants... if you're worried about snakes wear loose gaiters around your lower legs. 3) Wear a wide brimmed hat!!! About 20% of the heat (or cold in an cold climate) is accumulating around your head (or escaping when it's cold). On my jobs if you don't have a hat you don't work. And baseball caps don't count for a hat! 4) If you must be in the open, rest under the shade of a tree or brush as often as possible. Don't discuss a work schedule or hiking plan in the blazing sun! 5) Start the work day at first light (before you can read the print in a newspaper). Take shelter under a tree during the middle of the day and resume your activity after 3pm even if this means working into the evening to last light. Working during the middle of the day has only a work rate of about 30% of the cooler hours anyway. I've worked in areas where the temperature has reached 50 degC during the middle of the day... you are stupid to try to work during those hours. 6) Monitor the demeanor of your colleagues. Heat stroke can come on very quickly so at the slightest hint of a problem demand him/her to take shelter and drink. 7) Take a dose of hydration salts twice during the day (I like the orange flavoured sachets) if working in the heat. You will lose an enormous amount of salt in hot climates and it can be a big problem (not just the cramps). 8) If you're a lily white skinned Englishman/woman you will need a sun block but try to get one that allows the skin to 'breathe'. Your skin doesn't get as much evaporative cooling effect if you slather it on thick. There's much more but I might end on sad note. About 25 years ago a European family of four decided they would travel from their minus 15 degC winter and visit Uluru (Ayers Rock) and the Olgas in Australia during a normal day for those parts of 45 degC. Their flight connections took them all the way to Uluru. Excited to hike around the Olgas area they started their adventure within an hour of checking into the hotel. Withing 3 hours they had all perished. No acclimatization, not enough water, poorly dressed, they had no chance. Heat kills if you're not prepared. It happens often but is always preventable.

[@PeterR0035]

20 liters a day?? Where would that be? I spent many months in the Australian desert at foot, without any shelter at temperatures of +50C during the day (and the ground you walk upon even hotter) and +35C at night and I never needed more than 7l to 8l /day. Drinking forcefully that much water is also psychologically very difficult. PS If 20l accounts for 25% of your body weight, you are one big woman...

[@neneeq8533]

@@PeterR0035 Ha ha... I'm using my Wife's account (she weighs 42kg). Yes 20 litres a day is an exception but when you're lugging a 25-30kg pack over hill and dale in the Tanami, Great Sandy, Kimberly, Kalahari etc and can't work at a leisurely pace you will sweat big time. A litre to 1.5lts per hour is nothing. If I were a tourist in these areas (there are virtually none in the deep desert) I could get away with less than 6 litres a day. Remember it's only the equivalent of a cup of water every 15 minutes. And you will live.

[@hollylorn131]

I hope you and other people on this channel in the UK stay cool and safe from heat related illnesses. Thank you for bringing this very important message to your viewers. Much appreciated! We will be in for a hot week this coming week here in the US but not as hot as in the UK.

[@rickiefuwanfui145]

In Portland, Oregon (USA) we have had some extremely hot days in the summertime, sometimes reaching up to nearly 115°F. We have been getting alerts from OSHA and we will shut down construction and dock services during alerts. I am happy to say our state government has taken a more proactive stance in keeping us alerted so we might protect our employees. This was a great video even more informative than our Ame Red Cross training. Thank you, Dr. John!

[@debraenston4164]

Thank you. Brilliant as always. Clear advice and so timely. I hadn't realised the victim may not be aware of the problem and we would need to take charge. I now feel much better informed. Thank you

[@MrXMysteriousX]

To the inevitable guy who basically claims "that's nothing, I live inside a Volcano" as he sits their with the AC on full bore and procedes to mock others, that's great dude, but this country basically has no AC and we live in brick housing, essentially large ovens in this circumstance.We live in a civilisation designed to attend with wet and cold weather. As for everyone else, stay safe and take the precautions suggested.

[@yoriregalado5163]

Thank you so much, Dr. Campbell for this video! I had to call my 18 yr old son over so he can hear this information straight from you as he thinks his mom overreacts when he's had this happen to him. I immediately jump into action and get him straight into the shower, douse him from head to toe with warm to cool water to lower the overheating effect. Then I follow up with sugar in case he needs this addressed, and, of course, have him drink water for hydration. Now he understands it's not some concept his mom made up. Thanks again!

[@REJ5557]

And just add another comment, I recently returned from Sicily where we experienced temperatures over 40 degrees on most days. Our tour guide was amazing. She repeatedly encouraged everyone on the tour to make sure that we wore hats, drinks loads of water (she made sure the water on the coach was always chilled and available). And she also insisted that we stood in the shade at every opportunity. I noticed how stressed she was about the heat so I asked her if, as an Italian, she did not like the heat. Her answer shocked the hell out of me. She said she wasn’t stressed because she didn’t like the heat. She was stressed because on one of her previous tours, a gentleman suffered heatstroke and died!

[@sniperpd9505]

Timely and appropriate topic, Dr Campbell.

[@BighornShaver]

You mentioned something I've never heard before, that after 65 the nervous system starts to deteriorate. Useful information as I'm like you just over 65 myself. Love your detailed analysis on things, especially Covid.

[@RealJohnnyDingo]

Dr John is a great educator. I'm secretly glad to hear non COVID topics again 😂😂😂

[@claudinejames7731]

Oh wow, timely valuable information and reminders about over heating and heat stroke. Thanks Dr. Campbell.

[@PygKLB]

Just want to add one more warning: if you have had an episode of heat stroke, you are at greater risk of it in the future. Some of the comments below have mentioned vision being affected; I would strongly advise these people to avoid going back to work until temperatures moderate.

[@bpc610]

Thank you. I had no idea about increased susceptibility and will read up on that.

[@estee233]

Thank you so much for this. I passed this on to have my 10 year old granddaughter who is playing soccer and tennis these days to watch this. She is watching it right now in the UK.

[@rebeccafowler5352]

Some tips for dealing with high heat temperatures for those who are not used to them. Keep your curtains closed,it stops a huge amount of heat entering your home. Keep windows and doors closed during the day. Drink plenty of room temperature water,cold water feels refreshing but your body doesn’t absorb it as well. Cool loose fitting clothes,the least amount of clothing as possible. Cars become extremely hot when parked,open the doors and windows and wait a few minutes before you get in and don’t leave kids or pets in a parked car,it is not good to sit in a parked car while someone else nips into the shop. Wet a small towel with cold water and keep it round your neck. Stay in the shade. No physical exercise when very hot,wait till it cools down then take a gentle walk. If you have fans and or air conditioning then use it. Keep an eye on the elderly,they don’t feel temperature like we do so make sure they are drinking enough and make sure they are not wearing too many clothes. Fill a hot water bottle with cold water and freeze it,put your feet on it when you go to bed,it will help you feel cooler and get off to sleep easier.

[@joyfisher8008]

I've wiped down my body w/a cool wash cloth & laid in front of fans. Also have put frozen water bottles in my bra when lying down. Bears hibernate in winter; I hibernate during the New Jersey humid summers.

[@craiggillett5985]

Good list.

[@craiggillett5985]

Here in New Zealand ( and Australia) before air con was affordable our grandparents used to open 1 window at each end of the house and point a fan outwards in one of the windows, this pushes hot air outside and sucks cooler air in from the other end of the house, of course only works of night time temperatures do actually drop.

[@heideray7343]

Thank you! Record breaking long summer in Texas, having my hubby watch later tonight. You are so appreciated!!!

[@susanwood8086]

Brilliant, informative and interesting. Thank you Dr Campbell

[@Vulpovile]

Upstairs neighbour died of heatstroke when I was a kid. I wish I knew more about this earlier so I could have helped them, should be taught everywhere.

[@flamingpieherman9822]

I live in Florida so we're used to heat. I always remember to drink water first thing in the morning and always to take potassium and magnesium. When you feel yourself getting a little overheated it's best to take precautions don't wait... I've had heat stroke and it's not fun

[@JenniferF2882]

Northwest Florida resident here 👋 the humid heat we get is no joke for sure!

[@user_375a82]

I use mixed calcium and sodium chloride (about 7 grammes a day) - its called low salt in supermarkets but I tone it down by mixing in half pure salt. I am guessing too much potassium chloride not good for me, but that's a (wrong?) guess. Otherwise I get morning leg cramps - ouch.

[@flamingpieherman9822]

@@user_375a82 you have to take those equally...otherwise one can cancel the other. Calcium must always be taken with magnesium, but magnesium must always be taken with potassium. And if you take too much calcium without k2, you calcify the blood...which is not good.

[@44thala49]

I’ve had this happen years ago. It drastically lowered my tolerance to heat and even changed the way I think and speak. The words are in my thoughts but they don’t come out sometimes. Don’t let this happen to you because there’s no going back.

[@user_375a82]

Thx for the advice - I didn't know that

[@jamesnguyen7069]

i hope u are okay. this heat has to end. but i imagine global warming is coming

[@SmolCloud]

@@jamesnguyen7069 global warming already here my guy

[@whosaidthat5236]

Call it what it actually is interglacial climate change! FFS go look at the malenkovic cycle. I spelt it wrong but it still comes up . We are in between normal glacial cycles. If you don’t want to believe me a … lol a climate denier because I trust real science not government science. Go watch a video by, Potholer54 video title is earth story in 33 minutes . He is a climate activist. And also a geologist. He explained it very well how this is going to happen and nothing we can do about it

[@spirithawk2418]

Very great program today Dr Campbell I'm living with a TBI and summers with high heat plus humidity here in North Carolina can be debilitating for me. I can't be without a/c and I have from time to time get overheated and have to go to ER. it's really hard to get people to understand what heatstroke can do . Sorry to hear the heatwave is affecting so many there who aren't used to it.

[@MissJensk1]

Thank you for the advice John. I'm type 1 diabetic, do not cope with heat well, & am dreading the next couple of days. Oh & this is the first time anyone has ever explained to me the "brain fog" I experience when very hot. I am going nowhere & doing nothing on Monday/Tuesday, except resting in a shady room with a steady supply of chilled water.

[@5mayalevi]

I’m assuming you are in the UK as I am at the moment but I live in San Antonio. If you are really sensitive to heat then yes, don’t go out those two days-especially since air conditioning is not widespread in homes here. I must say that, even though I come to the UK every year for 6 weeks at a time during summer (I’m a teacher), it still is baffling me that we have had TWO MONTHS of over 100-108 degree temps in San Antonio, and people just kind of.. deal-but here they have TWO DAYS below 100 and start panicking. I totally get they aren’t used to it though.

[@essanjay8604]

@@5mayalevi Our homes are designed to retain heat that's the problem - no place we can guarantee to be able to cool off.

[@AnaKabedo]

Oh... great information!!! I had it as a teenager long time ago, in Brazil, after a bike ride at the pike of summer, at noon... I know now I was very lucky and remember very well the situation. It is exactly as described above by Dr. Campbell; I remember arriving home and taking my bike into the elevator to get to my apartment on the third floor and the feeling of intense dizziness, loss of vision, hearing noises still but from far away... I realized I was loosing consciousness, slowly reached out to the ground to avoid a fall and I fought it as much as I could to remain awake. In my mind at that moment, I just thought It could not happen in the elevator... By miracle, someone reach out to me in the elevator, I could hear the voice of that person from far but I had no vision, I remember saying, I can't see! I can't see! It was our housekeeper going out for errands that by miracle was there waiting for the elevator and rescued me. She pull me out of the elevator, sat me down on the stairwell nearby, lower my head down for a bit,( my vision and hearing returned) and helped into my home. She handle me Ice... I rest for a bit, took a cold shower and learned my lesson. Never again went to exercise under the sun in hot weather. Just now after this video, I'm shocked to know how serious this condition really is and deeply thanked God for all his blessings.

[@martinhafner2201]

Many years ago, 4 of us were on a bicycling vacation. All guys in our 20's and a mixture of fairly fit to very fit. We had to alter course because of a heat and air pollution wave, which got us all pollution sick in about half an hour. On the new route, we had some hot areas before we could get to a cooler, cleaner, higher altitude. And big climbs. The newly paved road was slanted just right towards the sun to catch a lot of temperature and we had a slight tailwind, which made it hotter, or at least no wind cooling. One of the guys got fairly unsteady and riding poorly. Uphill on a loaded bike at low speed is quite good at revealing balance or mental problems. So we got him in shade and mixed up some lemonade for him, which was the best we had on hand. Makes you really think about what should be in your first aid kit. We got him stable enough to pop over the hill to the next town and lunch at a diner with a big drink. He still wasn't 100%, so he called for a pick up ride. We were quite careful on the downhill into town. A lot of physiological problems incurred during a big hill climb can lead to serious problems on the downhill, leading to crashes. So we watched him closely on the downhill. If you ever have a very challenging time on an uphill, just take a break at the peak before heading back down. You could be unsteady on the downhill, which is not a good thing when you're going 40-50 mph. The other common problem is getting very sweaty on the uphill and then getting hypothermia on the downhill from being wet and suddenly on the shady side of the hill.

[@c1catwoman794]

I had heat stroke when I was visiting the zoo middle of summer. It was one of the worst pain I ever experienced. Felt like a heart attack. I learned my lesson.

[@ronniewilliz153]

Yes you feel like you got hit by a train for a few days after. I've had it a few times

[@jamesnguyen7069]

how did u recover? are u ok?

[@Shirar2000]

The timing of this video couldn't be better. It's DEFINITELY needed. I fully admit in advance that my decisions were of the "not smart" variety during the course of running errands in Dallas, Texas, yesterday: Mistake #1: Opting to conduct my errands in the early afternoon when the outside temperature was reportedly 106°F (or 41°C). Mistake #2: Neglecting to estimate how long I would be out in those temperatures, especially considering the errands were run in... Mistake #3: ...a car without functioning air conditioning. Despite having plenty of water with me, by the time I'd completed my errands, I'd been broiling in my car for almost two hours. Nauseous and sweating profusely, I could see my face had turned red in the rearview mirror. Clearly, I was flirting with heat stroke, but since home was only a few miles away, I committed... Mistake #4: Instead of finding an air conditioned place to stop and cool off, I pressed on, and almost immediately found myself trapped in... Mistake #5: ...a Friday rush hour traffic jam, which I also failed to anticipate. To say that I was aggravated and miserable is an understatement. At a near-standstill, the air blowing through the car's open windows had stopped-and promptly got replaced with the surrounding traffic's exhaust fumes. In the middle of all this, and despite downing multiple bottles of water during my errand-running, my right leg cramped violently, making my use of the gas pedal to inch forward in traffic an exercise in agony. The sudden, convulsive cramping of my abdominal muscles caught me off-guard shortly thereafter-as did the wave of panic that hit me, knowing I could easily lose consciousness in those conditions. Scared, angry, dizzy, and feeling like I wasn't getting enough air I experienced every one of the heat stroke symptoms Dr. Campbell listed in this extremely germane video... I was light-headed and struggled to put together what I should do. There was nowhere to pull over, boxed-in as I was on all sides by traffic in a center lane of a major interstate highway. Without regard for how it would exacerbate the traffic-I briefly considered activating my hazard lights and exiting the car where it stood. I was literally fighting to breathe. The vehicles surrounding me had air conditioning, and there was a chance the sight of a disheveled, incoherently-mumbling figure tapping on windows and lurching from car to car in stalled traffic wouldn't terrorize EVERYONE, I thought. Surely SOME civic-minded individual-maybe even a medical professional on their way home from work-would see past my zombie apocalypse appearance and behavior, understand immediately what was happening, and generously invite me to plant my perspiration-saturated caboose in their nice, comfortable, life-saving, air conditioned vehicle. And also kindly provide me with a bottle of cold water. Remembering I lived in DALLAS, I quickly quashed that thought and decided I'd not further tarnish my dignity by making Mistake #6: Dying of heat stroke while begging for relief in a stranger's air conditioned car. Like a good Texan, I'd politely croak in my own damn car. In desperation, I grabbed one of the bottles of water I brought with me and began pouring it on my arms, shoulders, neck and face. The water itself had gotten uncomfortably hot in the two hours it had been in the car, but it somehow got me home... I'm lucky I made it. Stay cool.

[@layaclode6363]

Wow, what a story. I’m glad you made it!

[@Peter57808]

Great stuff John on this as most in the northern climes don't experience these high temps. Down here we see 38+ daily in summer and get somewhat immune to the effects. That does not exclude us from some serious adverse results! An electrical friend was working in a switchroom at our steelworks on a 40+ day and ended up with severe heatstroke. He was lucky to survive but is now a paraplegic. A rule of thumb that we try and follow is that if you don't need to pee you are dehydrated and need to get cooled down and top up on fluids. I'm an example of not taking heat seriously, after a morning at work on a 45+ day I cant remember the afternoons work, the drive home or the evening meal.

[@Icipher353]

Its winter in Australia at the moment, so I'm sitting at home with the heating on, but we're very familiar with temps well above 40C degrees in summer, so we're pretty aware of the heat, but people still get themselves into trouble with heatstroke every year. Most healthy people who don't do anything silly will be fine, but you can get into strife easily if you don't take some basic precautions like drinking plenty of water.

[@jjperry3995]

We have air conditioning to help reduce our core temperature in the evening and overnight and loads of experience to help us work through our high summer temps quite successfully.

[@savagegfry]

All normal, the only thing that has changed is the data. All of the BOMs have tampered with the data, to support the globalist AGW agenda, for power poverty. kzbin.info/www/bejne/r4DHmIiga955jac

[@grumpycarlsworld]

We do have the advantage down here though, of being acclimatised to some extent. Not saying at all that we're immune, but that kind of heat is more common here, and we tend to deal with it better. For the British, where I originated, 40º would feel like us walking out into 50º

[@savagegfry]

@@grumpycarlsworld the issue is, that like Australia's BOM, the British equivalent have altered the empiracle data, to ensure the narrative of perpetual panic, doom and the sky is falling, is maintained. The BOM removed historic high temps, leaving the lows, and then changed the data collection method, about 2010, so the instantaneous highs were recorded, and lows excluded. They lied! A couple of analysts have the empirical data, and show how they did it. As an example, Halls Creek was Australia's hottest town, with regular extremes of up to 54C. After they changed the data, Halls Creek was no longer the hottest town, and those extremes were "averaged out". kzbin.info/www/bejne/r4DHmIiga955jac

[@victoriaevelyn3953]

Do you need the heater on in Australian winters? I would have thought it wouldnt be that much colder

[@susanfarley1332]

Now that I'm older I find the heat much harder to tolerate. While visiting my daughter in Florida I rode a bike to the store and on the way back the heat got me so that I felt I could not continue home. Even in the shade I was suffering. I forced myself to continue but if I go there again I will carry water to douse myself if necessary. And carry a little battery powered fan too. At my home the summers are getting hotter and I am seriously considering moving further north. Many years ago I worked construction in Florida and the heat was bad. After sweating for a few hours I would get cold water to drink and it seemed that as soon it hit my mouth it evaporated. It was the best tasting water! The flavor of "WET"!!!

[@bcc7777]

That's why I don't get how old people retire in Florida? But I do understand bones feeling cold when winter hits. It chills you to the bone sometimes.

[@ministryofpeacekmk]

I don't know if you're talking about moving to Canada, or the North Pole when you say "move further north", because I live in Michigan, 35 minute drive to the Ambassador bridge to Canada, and it gets very hot & humid here! We have had many 90°F + days here this year thus far, with the highest temperature so far this year at 98°F. It gets brutal outside with the high humidity...I hate it!

[@susanfarley1332]

@@ministryofpeacekmk come to SC in the middle of summer. It's like a sauna with the humidity we constantly have. You feel like a turkey in an oven being basted. Worse than Florida sometimes.

[@timsteinkamp2245]

Go to Walmart and buy a folding umbrella for being in the sun. A hat can work too but then it restricts airflow. It happens in the 50 year olds going out and not able to handle the sun as when we were younger. I almost passed out myself on my property. In the desert SW a couple died less than a mile from their RV. Going on a hike.

[@kathryncasey4114]

Me too. I used to love temperatures above 115. The heat felt like a living thing. I felt like I had the world to myself. Now I am old and temperatures above 95 are uncomfortable.

[@delphi2475]

Thank you for your honest & helpful information without the drama the news often add. Very informative, Hope everyone stay safe 👍

[@jupitergirl9276]

Excellent info! You never disappoint. Thank you

[@alicericcardi3199]

Great info! Don’t forget electrolytes, potassium, and salt. When temps are high, preventative measures are key. I do hot yoga and used to own a heated yoga studio. We recommended electrolytes in 16 oz. of water at least twice a day. If a person seems mentally foggy, slowly dissolving a glucose tablet helps tremendously to activate the blood glucose levels which in turn gets the person’s blood sugar up and helps clear the mental fog quickly. (Note: glucose is to be given to diabetics and/or people who have ANY extreme metabolic issues).

[@craiggillett5985]

John something I haven’t seen covered in British media coverage “ ways to stay cool” is something our grand parents used to do in Australia and New Zealand before A/c was affordable, common practice at the time was to open a window on one side of the house and another on the opposite side. Then you get an ordinary house fan and face it OUT the window. This blows hot air out of the house and sucks cool air in from the open window. Particularly useful at night when houses can stay warmer than the evening outdoor temperature.

[@birdiep1444]

Thank you. All of the British media and Met Office/government have scared us with the heat the next few days but this is the first thing I’ve seen to tell us in detail how to avoid it, what to look out for and how dangerous it is. JC 4 PM?!

[@stevenee1ply]

Having worked flat roofing for 40years, you are exactly correct. They know they are sick but can't point there finger to it. Like in all sickness, awareness is first to leave.

[@truejaneysue8269]

Thank you so much for this informative video on how to recognize heatstroke and how to prevent it. Much appreciated!

[@summerrose9565]

As a nurse in Honkong I had to wrestle with a SAS soldier who had heat stroke after running in the Hong Kong marathon. He was furious we had stopped him running but warning him his kidneys were cooking and he could be discharged from the military if we didn’t cool him NOW he finally relented and lived to run another day.

[@malcolmclarke3033]

Your videos are so informative and down to earth. My late wife often directed people to your videos about COVID. Thank you for what you do.

[@Marie-or6hz]

We are experiencing excessive heat in Montana, at this time. The average temperature for July, is 83F. Today it was 103, with the forecast being in the high 90's to triple digits for the rest of the month. August won't be much better here, as August tends to mimic July. We are already getting warnings, and encouragements to stay in a cooled environment for the rest of this month. I got heat "exposure" while stationed in Texas, years ago. I woke to being lifted off my neighbor's lawn, being placed into an ambulance. It was nearly 120 that day; I had no idea how hot it was when I headed home. I do hope they are giving out regular warnings throughout the day where you are. Peace and safe blessings.

[@lucylu530]

I'm going to be heading to Montana in a few weeks. I hope it gets cooler.

[@thedarkdragon1437]

excuse me what? Montana? are you sure?

[@blankstares4355]

@@thedarkdragon1437 yes. Montana is arctic cold in winter, and gets hot as hell in the summer

[@markangelorgs.2773]

Those chemtrails are really starting to work.

[@walterlippmann6292]

@@blankstares4355 the worst of both worlds!

[@stephenlatcovich7077]

Thank you Dr. Campbell for your timely information especially with heat waves arising throughout many communities worldwide

[@gstbadcat1]

Running up a hill in Yuma, AZ in mid afternoon in July around 115F, I knew immediately I was in a state of heat exhaustion heading towards heat stroke, all the while my Dad was threatening to take me to the hospital if I vomited one more sip of water while I was in a cool shower. Then my sister made me drink a slightly diluted squeezed lemon juice and though I vomited that up several times, I knew it was working and in a few minutes my digestion calmed down, I was able to hydrate and was eating refried beans 2 hrs later. Don’t know what it was about the lemon juice, but it turned it around for me that day. The cool shower only cooled me down on the outside, but my internal temp was hot. It was scary. Please take heat exhaustion seriously and don’t delay getting medical help.

[@icycanadian]

I love listening to your lectures. Thank you for 3 years of shared knowledge ♥️

[@suewright1299]

Bless you for doing this video for us all to cope with possible heat effects Dr John. BTW the Fahrenheit measure is 98.4 So very informative of things could become severe, if folk aren’t aware. My husband had heat stroke in the summer of 1976 and was in a terrible state as a result. However, we managed to get help during the evening and he gradually returned to his normal state, but it was extremely frightening! I hope folk take notice of this video and take great care! Very many thanks indeed

[@Spartan1853]

It is actually 98.6 and NOT 98.4. The math formula is (37°C × 9/5) + 32 = 98.6°F

[@1961-v9k]

The Summer of 76 was much more Consistent, and before anyone says this one’s going to be hotter. Summer 76 was in the 30s almost every day from end of June through until August 🤦🏻‍♀️ it says a lot when we’re well into Summer and we’ve only had a few days of heat and media channels like this has everyone in a blind panic 😂

[@helentee9863]

@@1961-v9k l well remember that summer 🥵 I don't think this video will make people panic,l think it will make them prepared 🤔 Being prepared is good. I say this as both an ex Brownie/Guide and ex nurse. Apparently a large number of elderly people died In north France around 10 years ago during a similar heat wave,because no-one was prepared for this kind of weather I also remember all the incidents of dogs dieing in cars that happened till people became better prepared/informed of the dangers

[@1961-v9k]

@@helentee9863 true. I’m sitting here in my kitchen in the Northeast of England looking out onto my garden at the rain, and I’m bladdy freezing 😅🥶

[@helentee9863]

@@1961-v9k well,you're right that the 'news' tends to be London/southern centric. It is hot here on the south coast,lots of sunbathing going on. Not me,haven't sunbathed since l got badly burnt in my teens during one of those 'long hot summers' of the seventies 🤕 My skin peeled off in chunks for weeks after BUT, we do need your rain desperately,even though we had a fairly wet spring I think the hosepipe ban will start soon,and everything is really drying up What is 'strange' is that it's been dry for weeks,even though it only really 'warmed up' about a week ago Never used to do this,l think 🤔?, the westerly winds of the Atlantic just don't seem as 'wet' as they used to be

[@lolAnnMarie182]

My husbands aunt died of hyperthermia in mid June this year. Temperatures were nowhere near what they are now. I realize more than ever just how important it is to stay hydrated.

[@AwesomestGreatestMostestFunny]

I went to high school in the 70s and they taught everyone playing sports how to recognize heat stroke. I was running cross-country and noticed one of the runners puking on the side of the road, I told him get into a drainage ditch and soak his head. I instructed another runner to go to the nearest house and call our coach. I had him continue to douse his head and used his t-shirt to soak his body. Coach came and picked him up, told me it was a good thing I made him get in the nasty ditch water he was suffering a heat stroke, he never ran cross-country again.

[@lauriebradley8295]

Thank you John. This was a thorough overview of the physiology and factors of heat stroke. Thanks for taking time for us❤️👍🏼

[@lgude]

I grew up up in New Hampshire, but have spent the latter part of my life in Perth Western Australia and have learned to cope with heat. The first day or two gives me brain fog and I have learned to not push myself and cool myself off. I see from this presentation that I have been lucky enough not to get heat stroke!

[@jamesnguyen7069]

i hope u are ok... no lingering problems

[@lisa-ul4vi]

I just love you Dr. Campbell, I always feel you are looking out for us all. Big hug and kiss to you

[@Jedidine]

Thank you for this! In the summer I tend to jog in 100+ degree weather. This makes me think twice about that.

[@Teresa-K]

Very informative and necessary information. I enjoy your videos. Thanks for all you do, Teresa

[@paddy2661]

Worked for years outside and indoor hot humid 45° here in Australia English ancestors so I'm fear skin , had heat stroke few times the best hydration fluid I've used is coconut water full of electrolytes and yes water too, buy in supermarket/grocery stores. Great info Dr Campbell thankyou.

[@johnfaulkner6776]

Brief is not a word I associate with your talks, John, but I wouldn't miss a word of them. Thank you for your efforts to give us facts.

[@donnagpalk912]

This Waverly, Tennessee heatwave we been having has drained me. My thyroid ain't helping. I swell when I get hot. Not suppose to get hot taking my 9 different meds either..🙄 Seems this year is worse to me..We get real dark clouds as if it's gonna rain & 🌧 not a drop😱... My yard is dead.. I made a mistake and walked out on my front porch barefoot when heat index was 110....Didn't know I could run that fast getting off that porch...thank you doc.🙏💜🙏 Hickabilly, Tennessee here 👍

[@eugeniebreida1583]

@@AJAXKID123 Very good of you all!

[@donnagpalk912]

@@AJAXKID123 Thank you...so awesome getting AC for the lady.. my trailer is hot with ac

[@danielmarshall4587]

Thank you Dr Campbell lovely quick vid bringing us the facts, KNOWLEGE IS POWER.

[@srm9167]

Luckily I’ve grew up in California my entire life I’ve been exposed to extremely hot summers usually around 106 degrees sometimes higher usually a dry heat less humid. I’ve learned to carry giant water bottles. During summer I never leave home without a ice chest with water bottles I keep a towel to soak in ice and put it under my arm pit (usually the fastest way to cool your body temp) I work outside doing construction so hydration and body temperature cooler is really a necessity. I’ve noticed people who grew up in cooler climates just can’t handle heat. A friend from Chicago move to California and just can’t tolerate the summer heat here

[@mrp9498]

I grew up in the city of San Francisco. I can’t handle multiple days of extremely hot weather.

[@srm9167]

@@mrp9498 I guess 80 degree weather all year is a gift and a curse for you guys in SF. Sacramento it’s really cold during winter and crazy hot during summer

[@JBoy340a]

@@srm9167 you don't have to go that far for the heat. Walnut Creek (20 miles from SF is 99F now, SF is 59F). You have to love the Bay Area microclimates! Drive 20 miles and it is 40 degrees cooler or warmer.

[@wardrobelion]

Very nice of you to inform others of heat stroke. Many people don’t realize how hot they are. I saw it more times than I care to remember while working at a Florida theme park. Even people at the beach succumb to this. I’ve gotten overheated numerous times even being a Floridian. I’ve always been good about cooling myself down to prevent heat exhaustion or heat stroke. It only takes a few minutes to cool down in the shade. Thank you for all you do. Greetings from Florida 🌴🌺🪸🐠🌊🌀🚀😎

[@blahsomethingclever]

I've been asked to rescue an elderly woman who passed from heat stroke. The husband approached me in the parking lot of the trailhead, all scratched up. They were from Massachusetts, just hiked here in AZ starting at 8am, got lost, it was 107 and humid at the time at 1pm when i got there. The dead lady was still wearing full boots, socks, dark blue thick exercise pants, shirt with vest and had a huge mop of brown curly hair. I had sandals, light short pants and a big hat. The husband told me to help her in the parking lot, I ran to her. Rest in peace. And if it's too hot, seek shade, relax and just wait. They were pushing for the parking lot after having been lost for hours and finally finding the trail again. The last uphill section did her in, her belly was already swelling. I'll never forget how their 'professional' hiking equipment totally failed them. Heck if you're in that kind of situation, undress and seek shade. Wait until night, seek out water no matter how dirty it is. What a loss, the husband was just destroyed

[@grateful954]

So sad 😞

[@Mooray27]

What a terrible experience for you all. Sorry you had to go through that.

[@JBoy340a]

Unfortunately, this happens all the time when people come from someplace with different weather.

[@PlumBerryCherries]

Wow, I didn't know that you could get Brain Damage from heat stroke!! You learn something new everyday, even in your 40's. I LOVE THIS CHANNEL!!

[@janetgraham953]

I am a bee keeper and was getting this way yesterday…the headache was my warning and my heart racing..

[@Brendan45600]

Thank you for explaining this Doctor, i'm a trainee in healthcare and this is helpful towards my studies.

[@paulavandenbroeck1333]

Timely advice, thank you. Very important to take in fluids before you need to. The electrolytes in milk are better than water or sports drinks.

[@Primalxbeast]

Drinking milk in extreme heat doesn't sound very appealing. I'll stick to my sports drinks tyvm.

[@LesserMoffHootkins]

Milk was a bad choice!

[@judyhannah5811]

That was a wonderful vlog! Very informative! Easy to understand.Thank you.

[@kimberlyperrotis8962]

I’ve never had a well body temperature of even 97F or higher, so I have a heck of of time convincing doctors that I don’t feel well at 99 or 100F. It’s just familial/genetic, our normal body temps run a little cooler than average.

Finally it's here YES kzbin.info/www/bejne/oZjOmYOimctohrc

[@dmp1962]

Same

[@maryreardon6512]

Dr Campbell: YOU are my go-to source and I thank you for your expertise.

[@RealMash]

I live in the Rhine valley close to the french border. This time of year-if I am out-I try to be out after 5 PM, and carry about half a liter of water with me (canteen half filled) in my ever present Backpack (For Girls: My man-purse). I just went over my backpack to check if I have my mineral tablets with me-nope. I have some petlings (raw-PET bottles that are heated and blown up to the size needed for the bottle) and filled one with some mineral tablets (Neukönigsförder are making them here) and multi vitamin tablets. Put them in the backpack in my medic pocket-there is some first aid kit and an additional thermal blanket in it as well as some glucose tablets ;-) I do not stray to far from civilization or shade, but on some walks some stretches can become uncomfortable, and this city is built in a former swamp close to the Rhine-it can get quite humid here, and then sweating only makes you wet without any cooling effects. I have at least a base-cap or a proper jungle hat with me this time of year (yup, man purse carries it). If it gets up or above 40°C this next days, we should be good-as this is supposed to be very dry air. Drinking and shade should be enough. In case it isn't for me or someone else-I am prepared. And after the Good Dr's talk I know what to do. Maybe I will up my water provision to a liter.

[@Alpha_7227]

This is so interesting, as someone that is about to revise my first aide certificate, it really explains the theory behind it. I love also the explanation of how the body is effected in detail and how different occupations are affected. Also the explanation of how humidity really makes it worse due to inability to sweat.

[@mikecurrie4914]

Thank you Dr Campbell, fantastic info. As an active 72yo here in Australia this knowledge is invaluable. I often go out and work on remote cattle stations for weeks at a time, we always carry water in the vehicle and have developed a regime of keeping on top of our water consumption/hydration. Can you please fit into your busy schedule doing a presentation on hypothermia, especially in children as well as adults. Thanks again.

[@pebbles2096]

Thank you Dr. Campbell! Last summer in British Columbia, there were at least 500 deaths during a heatwave. Here in Ontario Canada we have some very humid summer days, my partner works outdoors, these are important reminders. I hope Europe & the U.S find relief soon.

[@kimfleury]

We're not in the Dog Days of August yet. Those are the hottest days of the year, because of the position of the earth in relation to the sun. Occasionally an event occurs that offsets the effect, such as in the early 1990s when Mount Pinatubo erupted with such a huge amount of output that the ash encircled the globe and took away our summer.