All About Allergies

What are allergies? How are they caused, and what can people do to prevent them? SciShow explains!
Hosted by: Michael Aranda
Annotations:
Your Immune System: Natural Born Killer: • Your Immune System: Na...
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Sources:
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[@Quester91]

Nice video, 5 sneezes out of 5.

[@LakierosJordy]

I am allergic to dust. Fucking dust. Its the worst one because its everywhere, all the time and there is almost no way to avoid it.

[@BadgerHobbs]

I can beat that, I have an allergy to the sun :( it's called PMLE

[@perfectsweetheart]

SwissCheese ***** fun game. I'm allergic to both dust and the sun. And heat. And every single type of plant and animal they test for. As well anything that has an artificial scent. Heh.

[@jaythomas1010jt]

SwissCheese well um im alergic to pennacillion so i have to take other stuff which takes ages to cure me

[@jloves1d858]

the_mysterious_fox I'm allergic to it also 😣

[@jaythomas1010jt]

Jloves1D yah know how much percent of humans have it? I realy wanna know

[@nihilisticpancakeface6553]

*Allergies Immune system: Red alert we have intruders!!! Pollen: no we just got lost and ended up here. Immune system: No excuses! you are a harm to this body! Pollen: But im just a piece of pollen i just got blew here. Immune system: LOAD THE TANKS! Pollen: Wait! Immune system: FIRE!!! Me:... *Sneeze

[@boogabxxga]

Fav comment this month

[@perstephanies]

I feel seen.

[@MrAvGeekMan]

Accurate representation of an allergy

[@minecraftify95]

gonna give +9999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999 social credit to the pollen

[@heypookeybearitisi]

Michael saying "twenty-o-seven" made me physically uncomfortable.

[@theinsanitypenguin]

It's technically correct like when you say nineteen-o-twelve you don't say one thousand-nine hundred-and-twelve

[@cameronmacdonald8394]

theinsanitypenguin Who says nineteen-o-twelve? It's just nineteen-twelve?

[@WilliamBradey]

heypookeybearitisi They way he said "yolk" made me uncomfortable for some reason.

[@2020dancer4life]

Where is the "o" in 1912...? Pretty positive it's just nineteen twelve.

[@heypookeybearitisi]

William Bradey Yeeeeesss! Someone who understands me!

[@soullessmrme6582]

When a cat person is allergic to cats... feels bad

[@Claire-om5kl]

That's why we have allergy medication ;)

[@chellebelle534]

I wasn't allergic to cats until about a year ago.

[@nataliechernisheva8701]

Soulless MrMe that is me

[@monsieurkeyboard]

that took me here...

[@taeinyi364]

it dosen't matter wether im a dog person or a cat person because im allergic to both ;-;

[@Confuzledish]

It's difficult to avoid some food allergies though. I'm allergic to fruits and vegetables.

[@Minecraftrandomvids]

I found out the hard way. My throat is still itchy...

[@MettheSlayer]

Confuzledish To all kinds of fruit and vegetables? Damn, that sucks..

[@wiet111]

Confuzledish Out of curiosity: To what specifically are you allergic? Is it a specific molecule, and if so, which one? I've never actually heard of someone allergic to fruits and vegetables, and it sounds interesting (And incredibly annoying)

[@helllocathy]

Im allergic to red apples. I can relate

[@myrobotfish]

Confuzledish I think he's trolling, pretty certain u can't be allergic to all of them. But hey, maybe I'm wrong.

[@EnglishChats]

the way he says yolk tho

[@Eldorado1239]

***** And how to you pronounce "yolk" - Yoolk? Yeehalk?

[@EnglishChats]

ElDoRado1239 yoke

[@AntonConstanti]

ElDoRado1239 Yeeeeeehawwwlk

[@epsereth]

ElDoRado1239 YAWP

[@tirlen]

***** I was excited to see that he says yolk the same way I do! Even though it's technically wrong

[@sharathmaidargi]

This video focuses more on food allergies. It would be great to have a video about allergies specific to indoor environment. Thank you.

[@AquaticMaster]

Allergic to: Beef, Dairy, Tree nuts, Peanuts, and I finally outgrew eggs.

[@domistogga7778]

yeah i got the same every fkn food every fkn tree every fkn thing

[@domistogga7778]

***** hahah and he mentioned histamin too omg he knows everything about me

[@sacr3]

Aquatic Master: Aquarium Excellence Don't breed bro, don't spread that shit.

[@AlphaDogeWOOF]

Aquatic Master: Aquarium Excellence Im allergic to dust mites, which they are everywhere: clothes, beds, sofa, air. I have sinus inflamation, asthma and dermatitis rashes from it...it sucks too...

[@russellshutes8437]

sacr3 Allergies aren't completely genetic, it's all about the right partner and how you expose your children.

[@AnAutisticPsychologist]

I had no allergies as a child, mine developed in my early twenties. I think it started with just birch, but now includes grass, dust, dogs and cats - but I'm also sensitive to anything that has a strong smell, especially perfumes (although that's apparently not an allergy).

[@potatoO0o]

TheAnMish Me too. Started with birch in my early twenties. Now I also have cross allergies to some raw fruit and vegetables. I'll die if I get allergic to dogs and cats. Weird, I'm also sometimes very sensitive to strong smell. Is this connected? Smell sensitivity usually comes from migranes, but I don't suffer from any kind of headache.

[@Atanar89]

pewpewpew I got birch allergy. Are you allergic to raw carrots, too? Makes my nose itch like crazy.

[@potatoO0o]

Atanar89 Yes I am! Apples are the worst for me. It sucks because I'm a preschool teacher and have to cut apples for my kids every day for a snack lol.

[@therealr0bert]

TheAnMish Perfume needs to just go away.

[@TonyWilliams27]

TheAnMish I don't like smell of very strong house cleaning bleach. I will vomit everytime to strong-smelling bleach!

[@larsswig912]

Air: gets cold My immune system: seems suspicious enough Histamine: allow us to introduce ourselves.

[@minecraftify95]

Sussy

[@MicroBlogganism]

Epinephrine isn't a form of adrenalin, it is adrenalin. It's simply another name for it.

[@minecraftify95]

Adrenaline*

[@smileyy728]

I'm allergic to grass pollen. Which is everywhere. Fuck that, I can't escape it.

[@smileyy728]

greg77389 whoops I didn't mean that error lmao

[@celadewallace474]

When I get grass tests (and I get shots) the test area for grasses swells so much they can't do other scratch tests on a quarter of my back. It sucks!

[@heylol33]

+greg77389extra

[@smileyy728]

Celade Wallace wow what. I'm sorry :( hope the doctors give you good medicine to help you with this :)

[@celadewallace474]

nobody knows Immunology is getting a handle on it... still, human biology is a mess!

[@gold_pressed_latinum]

Hearing him say yolk is the most vile thing I have ever experienced.

[@alisutherland1103]

SciShow rocks. ive lived with allergies my entire life and they seem to get worse every year. i am so happy with how thorough they are.

[@Twosocks42]

I do the immunotherapy. Time consuming early on, but definitely worth it. I'm not sure what constitutes an allergy "too severe" as I have a horrific allergy to cats and that is one of the allergens my shots target. Previously, I could just walk into a room that has at some point in the last few weeks had a cat in it and immediately start having issues with my sinuses, my eyes, skin breakouts, and asthma. After nearly two years of this treatment, I now tolerate cats with little to no allergic symptoms at all. The shots are not something you have to do 1x-2x weekly indefinitely. You start out with twice a week, then increase the dosage and decrease the frequency. Over time, you start getting larger concentrations of allergen spread over intervals of once a week, once every two weeks, once every three weeks, and then a maintenance dose of once a month. Everyone has different degrees of tolerance (or number of allergens they are getting treated) so how long it takes to get to a maintenance dose can vary. I was able to do the accelerated process (two shots at a time) and got to the maintenance level in 6 months. Those who go for one shot at a time take about a year on average, but I have heard of it taking as long as a couple of years- all depends on how you react to them.

[@minecraftify95]

Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy Therapy

[@Zoot101]

Today's President of Space message was so sweet. :)

[@Lego9663Studios]

***** Hey Zoot. :D

[@Zoot101]

Lego9663 Studios Hi!

[@Zoot101]

whitevenom101 Nope, I'm still swamped in university work! My final deadline is in about two weeks, so after that I'll be able to go back to stop-motion.

[@Lego9663Studios]

***** Cool. I'm also busy with schooling.

[@elliotburing87]

It made me say aweeeeeeeee :)

[@coolguyluis]

Im not allergic to anything hahah Best immunity ever! Thanks mom and Dad!

[@sacr3]

coolguy_ luis Don't thank them just yet, there is still 10000000 disorders, disabilities, diseases left on the list of "what i can develop as I get older".

[@coolguyluis]

True True

[@parasiticlightningscourgev6674]

Lol same. What I am thinking is "I AM SPECIAL! I HAVE NO KNOWN ALERGIES! MY IMMUNE SYSTEM IS NOT EASILY TRIPED UP! YEAHHHH

[@coolguyluis]

Nice!

[@sonicpsycho13]

coolguy_ luis Or you just haven't encountered something you're allergice to. I never had allergies before, but then I moved to a new home last year, and now I get seasonal allergies.

[@Lisa-fy1vi]

Growing up I was allergic to absolutely nothing. After I had my daughter, BOOM! Seasonal allergies every spring. Itchy/watery eyes, runny nose, sneezing... It sucks. They seem to be fairly easily controlled with antihistamines and nasal decongestants luckily. I'd be really interested in learning more about how allergies develop during/after pregnancy.

[@nicholepalmisano6660]

Nice video, but I would have liked to see something about allergies that have a delayed onset. I developed an allergy to shellfish in my mid 20s. I've never understood how I could have suddenly become allergic to something like that.

[@AValidPointUHave]

Wish you would have talked a bit more about season allergies and pollen allergies.

[@jimdwight558]

Informative video about allergies by an Expert. Check out! 🙌 kzbin.info/www/bejne/in7Fh6mOZ66tn5Y

[@aaminahasan6270]

There should be another video

[@SethWatersVlogs]

I've never been made so aware of the L in Yolk before.

[@N....]

I'm allergic to the various things in the air most of the year, and my sister recently developed a shellfish allergy after having had shrimp for years. Allergies suck.

[@Twosocks42]

Another component of the microbial deprivation hypothesis is also tied to caesarian birth versus a vaginal birth. Being born through a c-section is now strongly correlated with a significantly higher degree of allergies, which some speculate may be due to not being exposed to the bacterial flora that live within and around the mother's vaginal canal. By not having that early exposure, your immune system loses out on "head start" and is behind everyone else.

[@megashley1963]

Twosocks42 Source?

[@wierdalien1]

Hey nice to know someone else knows this. This really isn't that older study. Like the start of the year old.

[@Twosocks42]

Meg Ashley My original source- my microbiology textbook. However, this also says as much. www.medicalnewstoday.com/articles/256915.php

[@megashley1963]

Twosocks42 Huh, that's interesting. Gross, but interesting. I appreciated that that link further links to multiple studies as opposed to just one anecdote.

[@JellybellyWaffles]

Twosocks42 Why not just take some of those bacteria and place them on the baby?

[@CQLQSSUS]

I grew allergic to watermelon 2 years ago for no reason, I miss it :(

[@sacr3]

Tyler Pope The fuck? that doesn't strike you as odd?

[@CQLQSSUS]

sacr3 Yes actually, I used to eat watermelon every summer for as long as I can remember. Then one day I ate some and had an allergy attack.

[@meegy2]

Tyler Pope have you tried it again since then?

[@CQLQSSUS]

Meagan Co No.

[@meegy2]

Tyler Pope I was just thinking it might have been something that was on that particular watermelon

[@MuppetFrotter]

I love your videos and I'm super-grateful that you make them. But they're almost unwatchable because someone has decided to edit-out all the pauses between sentences. It's totally unnecessary and makes it impossible to follow. This isn't a high-pressure, fast talking sales pitch, it's an 8-minute video. Please tell your editor to leave some breathing space so that it's bearable to watch.

[@melTiceTiger]

I'm currently going through the immunotherapy shots for bad allergies to airborne pollens, some grasses, and some animal dander. They give you a shot twice a week for 4 months, building up the dose until you reach a maximum dose (called the maintenance dose). Once you reach the maintenance dose, you get the shot once per MONTH, but the treatment can take 3-5 years optimistically. The shots are covered 80% by my medical coverage, which is good because the shots are $300 per vial. The vial lasts about a year. Before the shots, I had environmentally triggered asthma caused by allergies to floating spores in the air. I would wake myself up at night gasping for air, and I would have to sit upright and catch my breath. I lost out on a LOT of sleep. I couldn't workout or do anything too physical because anytime I would breathe heavily, something would trigger my symptoms. It's now almost been 3 years of getting the shots. I never wake up gasping for air anymore, I can workout and go running. I occasionally still need the puffer if I, say, go for a hike in the woods, but the shots have really helped. They're expensive, but they're well worth the improvements you'll see.

[@starkbotha1129]

4:51 = Parktown(In Johannesburg), South Africa.

[@crowlovescore]

30? that means I still have a chance :) awesome.

[@LifeStyleTherapy]

Many things can trigger an allergic reaction. It happens when your body's defenses attack something that's usually harmless, such as pollen, animal dander, or food. The reaction can range from mild and annoying to sudden and life-threatening I made a video in my channel about 8 Common Allergy Triggers you must know...you can watch it

[@SureyD]

Suddenly I realized how much my allergy history makes sense, thanks to those explanations/theories. Thanks so much; great video!

[@luxtenax9175]

This is one of the best videos you've made in this channel so far. I am starting to like this guy, he has a really nice voice.

[@frostypaws14]

I developed a milk allergy when I was about 14. I don't know of anyone else in my family with allergies besides my father who is allergic to cats and dogs. No food allergies though. I've heard of a lot of other people suddenly developing allergies, very odd.

[@jamescook7206]

+cactuslem interesting fact, only 25% of the world population can drink milk. The other 75% can't digest it.

[@frostypaws14]

James Jessica I can digest it (as in I'm not lactose intolerant) funny enough, but I have an allergic reaction to it. Go figure.

[@kewlbns69]

you guys are so great! these videos are always entertaining as well as educational....THE PEANUTS ARE ATTACKING! haha xD

[@zengrenouille]

I have a friend with so many allergies that the labs they recently started doing to help diagnose allergies was literally off of the charts. Her doctor doesn't even know how to begin treating her allergies. I've known her for 15 years, and I've never heard her real voice. She is constantly congested and nasally.

[@TheEpicFail79]

I don't know why but I love the fact that I got an ad for allergy medicine before this video

[@opalishmoth8591]

My mom can get anaphylactic shocks. So, one night, a little bit after I went to bed, she got an anaphylactic shock. She couldn't breath. My dad call 911, and gave her some puffs of her rescue inhaler. By the time the paramedics got there, she could breath. My sister thought it was Ebola. I slept through this. My mom didn't realize this was anaphylactic shock until later. The last time, (before this recent episode) was back when she was 16. So when i was a the doctors office, because I had an appointment with my asthma doctor (thanks to my mom, I have asthma and allergies) and she mentioned the anaphylactic epsoide, not thinking it was an anaphylactic shock. The doctor told my mom (who btw is also a doctor) she thought it was an anaphylactic shock. At the time of the epsoide, my mom and dad didn't know where the epipen shot that treats anaphylactic shocks, was. The doctor gave her some. Now my whole family knows how to give an Epipen shot to my mom. It seems like the anaphylactic shocks are caused by a spice, but we don't know which spice. So my mom can't eat chile spice, cinnamon, ect. At all. I'm (probably) allergic to dust. And from the skin prick test, it seems like I might be slightly allergic to olive trees. I hate allergies.

[@opalishmoth8591]

That sounds like it sucks. So basically what allergies are normally like.

[@opalishmoth8591]

My allergic reaction to dust is asthma

[@opalishmoth8591]

Lucky. Not breathing is totally the most "fun" ever.

[@lynndoublelegacy9034]

I'm allergic to all types of pollen, as well as anything with fur. This makes Spring a nightmare if I forget to take my allergy pills. Thankfully none of mine are that severe.

[@opalishmoth8591]

That's... "Fun"

[@BoogerLeader]

Wheat...I hate you...right along with Mr.Rye and Mr.Barley.

[@jenniferrichardson3219]

BoogerLeader A fellow Celiac?

[@BoogerLeader]

Jennifer Richardson Yes ma'am!

[@robertbones326]

Hehe now I know what to get you for your birthday

[@NottyNutty]

+BoogerLeader OMG...no beer for you?

[@BoogerLeader]

NottyNutty Nope! It's alright, wine is still perfectly fine!

[@KyunChan93]

I did an allergy immunology treatment this year. It's a 5 - 5 1/2 year treatment that injects you with an increasing concentration of allergens until a maintenance dose is reached. But you have to take an anti-histamine before the injection. I was about 6 months in but had to stop because I had too many severe reactions and the docs felt it was unsafe for me to continue. :(

[@aaminahasan6270]

I’ve heard about that. Was considering taking it bc medication is not helping but am unsure

[@tirlen]

You mentioned a patient getting allergy shots for a year? I got allergy shots for a decade and my allergies are still awful. Maybe a year is all you need for food allergies, but my seasonal allergies need way more than that to take them down. And there's no avoiding my allergens unless I just don't leave the house :(

[@cusson27]

Me at age 5-13: * Falls in love with animals mainly dogs and cats * Me at age 14-15+:*Gets non severe yet really annoying allergy that reacts to anything with oils in their fur*... * Is already pursuing Vet. Tech. *

[@LordDragox412]

cusson27 In my case, immunotherapy totally cured my allergies, and I was allergic to a large amount of things. It was quite expensive and I had to visit a hospital to take a shot every friday of october and november for five years, but it was totally worth it, as even after only two years of the therapy most of my allergies were gone. Unless you're scared of needles - I would never in my life inject myself with anything, but as long as someone else is doing the stabbing, I'm okay with it... XD But seriously, if you want to be a vet tech, find a way to fight your allergies in a way that will more or less cure you for good, as having to take pills for the rest of your life would suck big time... :\

[@cusson27]

LordDragox412 The thing is is that its the oils of the animals fur, all I have to do is wash the areas that I frequently touch the animals fur, i.e the hands, around the arms to pick them up, wrists, etc. My allergies are in no way severe, just a red inflamed rash that starts to swell and develop small white bumps, but the only effect it has is an itch, and if it gets into my eyes they'll water, and in the nose will run. Fun fact: I have two cats, and have had them for about two years. Unless I have my face rubbing into their fur; I have no reaction. Same thing with my gf's dog if I visit often, my reactions will go away. Though it'll come back for any other animal I touch. If I can actually gather up some money and I have the time and the means to do so, I'll look into it. Thanks for the suggestion though. :D

[@leah5820]

cusson27 It's not their oils. It's dander.

[@cusson27]

Leah Schalipp "Are skin flakes the only source of animal allergens? No, the primary cat allergen, Felis domesticus allergen I, is a glycoprotein found in the sebaceous glands of the cat's hair roots and in their sublingual salivary glands. It is also present in the urine of male cats." -www.dustfree.com/support/iaq-info/animal-dander I also know that its the oils because its the same allergy my father has but less severe. If I want to take anything from his experience is that I need to stay exposed to animals or my allergy will develop.

[@HedendaagseHippies]

cusson27 Hey I'm also allergic to a lot of animals and a vet tech (we call it vet nurse), I just love animals too much so I'll endure my allergies :P

[@jessieHORRIFIC]

Michael, y u no fix your hoody?

[@BazookaTooth707]

Don't be so compulsive ;)

[@sacr3]

Jessie Hutchings "y u no" .... ....... ..........................................

[@jessieHORRIFIC]

sacr3 bringing back 2010!!!!!!!1!

[@EthanRDoesMC_]

What's 4chan? JK!

[@RC-1290]

Fix? What's wrong with it?

[@TheAuxLux]

Great video, it sums up many various theories really well. Good job!

[@sullivannick]

THANK YOU for fixing that drawstring between 1:35 and 1:45.

[@OverTheMoon891]

"THE PEANUTS ARE ATTACKING! D:

[@alannalyc]

pollen: *enters body* lymphocyte: HOLY FUCKING SHIT A FUCKING INTRUDER HOLY FUCK OH MY GOD OMG OMG SHIT FUCK HELL NO

[@dagamerking]

Cool videos sci show! Thier some of my favorite videos to watch, and im always waiting very impaciently for the next video.

[@phaze2010]

I took allergy shots for dust, mold and mildew for many years a kid to help with asthma attacks. They definitely made a difference and I'm much better now, so its neat to find out how they worked.

[@mutantmaster1]

my nut allergy allowed me to get a taste for peanuts and cashews, then completely flipped itself and made it so I can't eat them without getting a pissed off mouth

[@emmakelly5703]

i smelled my bio teachers peanut butter sandwich in the hallway and i had to go to the nurse because i immediately started reacting and everyone was confused

[@RickMitchellProvenanceAndRoots]

"Avoidance" is great if you are able to completely separate yourself from the rest of the world. Especially with "hay fever" allergies. Some of us are simply allergic to existence.

[@gosenskat]

I was so on board with the until the little quip at the end "just don't eat it" - that is absolutely the MOST difficult and frustrating part of having a food allergy! (Anaphalaxis to peanuts/nuts + allergies to every tree, animal, grass, dust mites, ragweed and some fun cross reactions to certain fruits over here!)

[@PinkChucky15]

I'm so thankful that i'm allergic to pretty much nothing. The worst thing that happens to me is sneezing and watery eyes during spring :-)

[@JIYkp]

More proof that Canada needs to legalize unpasteurized milk.

[@5minutscraft487]

I love it when you start your explaination with 'immunesystem' good job guys !

[@minecraftify95]

You. Forgot. Space.

[@fareface]

Ive already figured out the benign exposure on my own in the general sense so i try to expose myself to germs and not be so sanitary but not on a gross level

[@andreaspitsch9004]

The daycare thing is very interesting. Nearly all of the children in eastern Germany where in daycare, but not so many in western Germany. At least before the wall came down.

[@Alexaflohr]

Some food allergies are difficult to avoid. I'm allergic to a (normally) harmless fungus that grows on grapes. Grape concentrate is used in pretty much everything with fruit in it because people expect that sort of flavor in a lot of different things.. Every time I drink juice, which is necessary to maintain good vitamin C levels, I have to check the labels.

[@MrBOGooooEATER]

Just wanted to say that omalizumab / xolair (brand name) is really expensive, so the fact that some allergic people are allergic to it, is not the only reason not to have it. It would probably also have to be given during hospital visits due the to risk of anaphylaxis, fortnightly, and therefore some peoppe may not want that. However this was a pretty excellent video that was very well researched

[@angelapharmd6148]

I love these videos. It helps me review for the PCAT.

[@carriemaxwell4695]

I was born Asthmatic, because both my parents were. My bio dad grew out of it, but my mother later developed it mainly due to smoking. Cigarette smoke is my number one trigger which has caused me to be intubated. My lungs just shut down. I also have allergies to cats, dust, pollen, onion, and thick dairy like cheesecake and drinking white milk. For some reason, not chocolate. Plus I get sick when the weather changes (dry to wet, cold to hot....that kinda thing) Which happens a lot in Oklahoma. I really shouldn't live here, but you can't pick where your entire family lives. Understanding how allergies work is important to me, so thank you for this episode.

[@shivanichhabra1166]

have been suffering with chronic post nasal drip for 11 years. I’ve tried everything under the sun to clear it and have spent a ton of money on ENT visits and nasal sprays. One thing gives me relief and that is a low dose of ibuprofen. Just 100 mg is all it takes and I get relief.

[@blackwidowmollie]

My daughter is allergic to rice in its grain form but yet can eat rice crispy treats. Now I know why. Thanks SciShow!

[@DDIAZ-we4dz]

good thing i was raised in venezuela in a poor slum. i was constantly exposed to bad food, dirt, grime and the elements. now i dont get sick at all except the occasional yearly cold that works its way out in a few days.

[@megarafa1199]

I undertook a treatment in which I had to ingest increasingly big dosis of white twice a week in the hospital, and with the time my allergy to both white and yolk decreased to almost imperceptible reactions...

[@kevinzhang3248]

Correct me if I'm wrong, but I don't think histamine is an enzyme (it was referred to as "histamine enzymes" in the video and the corresponding chemical structure was given). Enzymes are proteins...that doesn't look like a protein to me.

[@eduardomateos-diaz7123]

I agree with you, I think they are using the term "enzyme" inappropriately. Enzymes are proteins that catalyze chemical reactions in biological systems, not even all the proteins are enzymes. Here they use this term to talk of molecules such as histamine and protein with no catalytic activities, which is incorrect!

[@Nalanzazu]

my mom had some food allergy testing done cause she had a really severe patch of eczema on her neck. Her naturopath told her to stop eating tomatoes, avocados, and mangoes, and it totally went away! She had a mango for the first time in a while the other day and the eczema came back raging for a good week.

[@windsroad-]

my allergies with eggs work that way! I can eat the yolk but not the white, and I don't react as much to a hardboiled egg as I do a softboiled egg, for example! I didn't have an explanation for it though, it was just something I noticed. nice to have an explanation!

[@Anamnesia]

You should do a video on the differences between 'Sensitivity' & 'Allergy'

[@HylomantisLemur]

Great vid! Would love to see this taken a step further to talk about autoimmune illnesses.

[@minecraftify95]

Fun fact: HIV != AIDS

[@krishnair9302]

Wow! So Complex! Great Job!

[@squireob]

Dude is getting better at the stand up presentation.

[@mythologiefan]

Great episode. The only thing that is bothering me is: the immune system is not overreacting. It reacts to the wrong stuf. since I started my studies in biomedical sciences, I learned so much on this topic, that I can no longer agree with saying it like this.

[@Adam-zf8ey]

mythologiefan Scishow is geared toward the common man. Even if these things are common sense to more learned people, you are in school for it and I'm simply a very curious person, the average person would get the picture from it. Though it isn't entirely correct, it gets the job done. Reacting to the wrong thing makes it sound like there's something specific that needs to be worried about, or is more easily misconstrued. I think.

[@mythologiefan]

Adam Holliday of course it is for the commen People. It already bothered me in high school, but since my studies I have the opinion that you should learn it to People like it is: aan immune reaction as it should be, only with the problem of being to an harmles substance. Even in an auto immune reaction this is the case. Everybody makes a certain amount of immune cells reactive to selve (DNA being one of those). Keep your curiousity And as I said: the episode is really good, this is just a detailwhich would make it near perfect. Greets

[@Dinner_Roll]

I have OAS, meaning I have allergic reactions to a lot of different fruits, like apples and bananas and such, and I found exposure to heat to be the best way to deal with it. I just cook up all my fruits so I can get all those essential nutrients in my diet. Avoidance dieting sucks when you have to miss out on so many essential nutrients.

[@emilyformato4044]

I'm allergic to pollen, trees, grass, bushes, mold, dust, ragweed and cats. This basically means I can't smell for about 3-4 months every year. It also doesn't appear to be going away. Also- if you are ever with someone having an anaphylactic reaction, and for whatever reason they don't have an epipen, Benadryl can help and keep them stable, at least until medical professionals arrive. Obviously ask the person if they can have it (most will know), but it can really help.

[@ElloetteLightbringer]

Love watching the progress of M's tassels through this video :) content kept me engaged too though :D

[@ViraIshnia]

I remember as a kid I used to have an allergy to hay. Only way I found out (born and raised city girl) was because hay was used as a prop at a school play. After I became an adult, I was exposed to hay again but didn't have allergic reaction to it. I guess I was one of the lucky ones who out grew the allergy

[@FlorTedesco]

I'm preeeetty allergic to dust mites and cockroaches and you can't just avoid them, so I want to get the shots BUT I've read they can come back when you stop getting them. WHAT TO DO?!

[@alexandramootopsyche]

Thank you! I have metal allergy that I realised that I have just a few months ago.... i lost so many precious moments in my life just because i didn't realised my body is afraid of metal and I almost died of heartattack because I used my kitchen vessel made of metal to cook all day for an year, I also yeld at.my child ... horror

[@theawsomemax]

Amazing video!!!

[@hkwhsu]

I love and support Sci Show. I enjoy this topic as it is a challenge many face and very dynamic. I did want to share a correction, histamine and antibodies are not enzymes. Enzymes are protein catalysts. Histamine is not a protein. Antibodies are not catalysts. Thank you for your great work.

[@blaz2892]

1:40 I have six of those, plus a few more food ones, and seasonal.

[@CrashRadio]

Thank you for fixing that draw string, it was driving me to distraction.

[@WhereWhoMe]

The avoidance diet. I feel like this will be a very popular video, especially during the allergy months.

[@sebastianmackay5657]

I live in the city, I have allergies, but I was ill all my childhood, at least 5 times a year.

[@BigFatJuicyMonkies]

What about those who get hives from being tired/stress and/or cold? What about from stomach aches? I don't have to eat anything to get hives. If I wake up one day and my stomach is randomly hurting for no reason that I know of, I'll get hives if I don't take it easy that day.

[@ElizabethC109]

He makes avoidance sound so easy.... It's so not easy.

[@jennpunk4lif3]

This is very nicely explained. Cheers

[@shyvicki]

Allergic to tree pollen and Penicillin. Haven't tried to find out if I outgrew the Penicillin allergy. I may also be allergic to two other antibiotics. As far as the tree pollen goes, I need to move to the desert at least during the spring and fall.

[@lisawyatt3278]

There are also studies linking people born via C-section and allergies.

[@moff3tt]

I am not allergic to anything normally airborne in my area, or any foods that I've consumed so far. What I am allergic to are antibiotics, so far I have reacted badly to all common topical antibiotics and ciprodex so yeah, glad I am not the type of person who seems to be chronically sick.

[@justmethatsfine5688]

Excellent job, Mr. Aranda 👍 I especially appreciated the "common sense" part 😸

[@supercooper92]

4:22 first time I've ever heard someone say "Twenty- oh- seven"

[@lilms.deafpastrychef7249]

I feel you I have indoor and outdoor allergies I would burst into hive at random times allergic rhinitis also allergic to silver.... and ppl tend to buy my silver jewelry -.- but no food allergies that I know yet :(

[@joelproko]

Personally, I'm convinced that a lot of allergies are due to underexposure to harmless actual pathogens, primarily as a young kid, or a combination of that and other, smaller, factors.

[@sac12389]

Why would the body respond with anaphylactic shock? Why would that ever be the response to dangerous things in the body if anaphylactic shock also causes death?

[@zecc81]

That was the first time I've heard anyone say "twenty-oh-seven" and it actually makes so much sense. Also, great video.

[@blistersonmyfingers9321]

Another brilliant video, Mike! You should consider changing that scene-kid-hairstyle though. :D

[@abdobedo9428]

I love this SHOW , keep going guys .

[@TreethanRexus]

Wouldn't the omalizumab eliminating IgE hinder the immune system?

[@DeepValueOptions]

As allergies are quite misunderstood by our orthodox healers, it would be inappropriate to subject people to the services of our medical doctors which find the amelioration of allergic effects to be connected with the intake of these same toxins in milder form. This, shall we say, treats, the symptom. However, the changes offered to the body complex are quite inadvisable. The allergy may be seen to be the rejection upon a deep level of the mind complex of the environment of the mind/body/spirit complex. Thus the allergy may be seen in its pure form as the mental/emotional distortion of the deeper self.