What REALLY Happens When You Exercise (Basically Magic) 🏃‍♀️🤸🏿‍♂️

[@DesignatedMember]

Seeing Rohin at last surrounded by his fellow cardiologists is like watching one of those wildlife documentaries were the lost wolf pup finally finds his way back to the rest of the pack.

[@johnladuke6475]

@@SanjeevSharma-vk1yo Your reply tastes like maple.

[@SanjeevSharma-vk1yo]

@@johnladuke6475 thanks for the reply, fellow synesthete. As long as my reply had a pleasant body odour I'm fine with it.

[@johnladuke6475]

@@SanjeevSharma-vk1yo No, I meant that if you know what Hinterlad Who's Who is, then you're clearly within range of the CBC and able to remember the 90s with clarity.

[@johnladuke6475]

@@michagabo8819 That stuff the special talking doctor gave you wasn't candy, but I think you should eat three or four all at once to make sure you're caught up on your dosage.

[@SanjeevSharma-vk1yo]

@@johnladuke6475 >> 90s with clarity.

[@carrion1234]

I feel like i learned a lot about hearts here. But i'm now also deeply confused about how beards work.

[@Tomm9y]

Perhaps they are synchronised with the lunar cycle, waxing and waning.

[@CPSPD]

Rohin is a Viltrumite

[@irreversiblyhuman]

You win some, you get confused by some

[@f_r_e_d]

Have you seen birds of paradise captivating their lovers and voyeurs alike? Same effect. The only ones that are highly unsuccessful are the patchy bearders and chin strap connoisseurs

[@patrickytting]

You moustache that question but the answer's saddam difficult.

[@neurotransmissions]

Will be sending this to clients to convince them to exercise. I say it a million times, but maybe they’ll listen to a funny man on KZbin.

[@ZainSharaf]

funny heart dr. man*

[@sketcharmslong6289]

I imagine that will probably work

[@PinataOblongata]

IMO I think you're unlikely to change someone's behaviour without telling them EXACTLY what to do and when. You can't leave it up to them to figure out anything or wonder when they're going to do it or what, exactly, they're going to do (too many spaces left for them to start thinking maybe they just won't or it's too hard). You also need to make it free, at least to begin with. If you can give someone a detailed program/schedule for a free training regimen (and even better, if they can do it with a friend) then the likelihood of adherence goes way up.

[@frollard]

Wait, Medlife is funny? pfft :)

[@jaredf6205]

I’ve started exercising for the past year, to be honest, I don’t feel any different. Every bad mental and physical thing is just as bad as before.

[@timepasskale]

Safe to say Dr. Francis' YT editing skills have reached the level of what may be referred to as the '360 no scope'

[@durere]

yeah that mustache caught me way off guard. EDIT: right as I wrote that, another mustache appeared. Ridiculous.

[@mikemclennan8917]

Dr No Disrespect.

[@user-vn7ce5ig1z]

He'll be posting deep-fried videos soon.

[@nickjones2301]

I enjoyed watching the cars drive backwards at the two minute mark.

[@mivvymakesmusic]

The beard changes kept me watching the sponsored bit 😁

[@eureka5701]

Love how you flexed a little with the 48VO2 max. "you and i are probably around 30-35?" Rohin: Let me stop you right there Peasant. I'll have you know

[@arthurreis1906]

And of course he won't repeat the test so the cardiologist performing the procedure is not humiliated. It is about not being a show off.

[@manaskale7441]

Rohin*

[@maxwelljames3573]

wow, you guys did NOT watch the end of the video lmao

[@wordzmyth]

@@maxwelljames3573 it's true the end was hilarious.

[@albr4]

61.5 vo2max checking in (yes it's higher than Steve)

[@AngadSingh-bv7vn]

surprisingly this was enough of a push to get me to get out of the house for a jog. after watching the sponsor message ofcourse.

[@dingus153]

I can't believe you're shilling for Big Healthy Lifestyle now smh

[@bums009]

Lool

[@doctormo]

I've been in the pocket of big walk since I was a teenager.

[@heh2393]

Big Gym got everyone in their pockets smh

[@bigguy7353]

@Pronto Don't ego lift and use proper form. I've used resistance training for 20 years. Zero injuries.

[@alexsitaras6508]

gym shorts manufactures are gonna make a killing now

[@ster2600]

Cut to Steve trying to close his locker while many cans of fizzy drinks tumble out of it

[@whirlwind872]

Lmfao

[@mounzermd]

LOL

[@abhinavomprakash4884]

Underrated

[@veloxsouth]

I was about to make this joke myself but +1 thumbs up to you sir.

[@enbyennui]

i shed a single tear when you shaved the beard

[@drzero8222]

Oh, no. Are you one of those single tear people?

[@Eggbutts]

I bet that tear doing the hokey pokey in and out of your eye as you witnessed the facial hair reappear and disappear throughout the video.

[@namewarvergeben]

Fortunately, he can regrow it at will

[@liambohl]

You must have had a proper cry then. He shaved every few seconds at the end

[@thomasrixon3336]

@@drzero8222 do I look like a double fucking rainbow to you??

[@NeverRetreatinBattle]

Wow, much jargon, much mystique, much smart. Your attempt definitely werked

[@imeverywhere9633]

you're*

[@lol...]

@@imeverywhere9633 your*

[@imeverywhere9633]

@@lol... u're

[@matthiasreichshof9896]

@@imeverywhere9633 you're = you are, your = your

[@jurchiks]

@@matthiasreichshof9896 Clearly you didn't pay attention to the video and are missing the joke... sigh.

[@laurasinkins6981]

I'm relieved that you mentioned the exercise only needs to get you mildly out of breath and you don't have to collapse in a sweaty heap. I've been walking every morning this year and I was doubtful there was much benefit to it. Thanks

[@maghouinbeg5011]

Walking every day will bring benefits, even if it is just a little stroll. It does wonders to alleviate back pain, low moods, etc. Increase the speed, and things like bone density improves, along with a nice little gentle cardio work out. Build it up, and push yourself a little, and you will see other benefits.

[@GreenTimeEagle]

Yeah you might try the practice "Do a little more than feels comfortable"

[@AbsolXGuardian]

Yeah, family and myself have always beaten me up for not exercising but after seeing a physical therapist I've discovered that just walking around in every day tasks is all my body can handle until whatever mystery underlying condition I have is diagnosised and treated. Traditional exercise will always be overexersion for me, and so I always thought exercise was supposed to leave you moments away from passing out

[@GreenTimeEagle]

@@AbsolXGuardian wow! No, my friend. You only need to get a little our of breath, maybe some sweet. Basically just out of your comfortable state is having benefits

[@MsJubjubbird]

more is better and three sweaty heap sessions a week are recommended if possible, but are not essential. Plus the more you increase the dose the less the returns are. So a couch potato who starts going for half hour strolls most days is going to see huge returns. An elite soccer player who adds in some extra running isn't going to produce the same increases clinically.

[@Malkoth]

The image of a heart pumping is, oddly unsettling. If I can see it working, I am forced to accept it's potential to fail.

[@LadyPelikan]

That goes for so many processes in the body!!! Sometimes I wish I just didn't know.

[@markveen1373]

Make no mistake, it will fail. What's more unsettling is that the people who lived the longest, super centenarians, age 110+. Their hearts were still fine, eventho they didnt do anything special and some are smokers,drinkers doing hardly any exercise. Meanwhile most hearts with average genetics will fail 3 decades earlier despite all the healthy habits and exercice. Life is unfair isnt it. :) Probably still a few centruries away, but who really knows. Science will eventually discover therapies and pills that will make everyone go the full distance longevity wise. And alot of the health advice as we know it will be redundant. But for now, exercise is our best bet.

[@ankavoskuilen1725]

@@markveen1373 The older I get, the more I begin to question that goal of longevity. Above the age of 60 you are going downhill.

[@cobaltno51]

@@ankavoskuilen1725 indeed, what good is a long life if body and mind are crumbling. Of course the real goal is probably not only to 'live to the ripe old age' but the implied 'in good fitness' is often forgotten about. True, modern amenities make aging far more comfortable, but personally I want to see an increase in old age meatvessel peformance, before I reconcider my plans of ending it all by myself with 70 or so.

[@oosakasan]

@@ankavoskuilen1725 maybe it's youth talking but I'd be happy to go downhill quite a bit to get to meet my grandchildren and see them grow in whatever new world exists for them.

[@Falney]

I am struggling with depression and I have recently started exercising. One thing I have noticed is, that not only do I have more energy than before, but the more often I force my self to take the first step (The oh so hardest step when depressed is the first step) I am finding it less difficult to start said exercise. Not sure if that will continue through to the rainy winter though.

[@SMTRodent]

I've found that linking one activity to another can help overcome the motivation bump at least some of the time. So, sitting down to write with my morning coffee because morning coffee is easy but writing is hard (well, it used to be). Or watching videos while on the exercise bike. Once upon a time I used to 'drag' myself out on a morning walk purely with the bacon sandwich I could buy on the way back. Building a habit is the best way to make something easy for sure, you never have to 'decide' to do it then, and going from 'I want to do X' to 'I am doing X' is, in my experience, one of the hardest tasks when depressed.

[@ToastyTastyPancakes]

The first step is both the easiest and the hardest.

[@The123fiona]

Get a buddy to exercise with. Peer pressure works wonders

[@billincolumbia]

Oooo, get some nice raingear and rubber boots. It's amazing how dry you can stay.

[@bulgarianb3ast]

You’ll feel even more rewarded if you go run in the rain, then take a warm shower and bundle up after in the comfort of your home

[@GreatMossWater]

“The mitochondrion is the croissant of the cell.” I see what you did there.

[@hikingmallard]

Steve's arm veins at 2:26 already raised suspicion for his affinity towards endurance exercise

[@hikingmallard]

@Flaccid Pancake Yes some people have them anyway. As someone who regularly takes blood from people I'd still say there is a certain tendency.

[@tekrunner987]

First thing I thought when I saw him was "well that's a cardiologist who takes good care of his own heart".

[@spinecho609]

@@hikingmallard a vampire in the wild!

[@spinecho609]

@@hikingmallard a vampire in the wild!

Haha, I have huge veins, for some reason mostly late in the day, and I am not that fit. And Ive always had that, before I started actually excercising.

[@TS6815]

Dr Francis, I lost my dad today to the pandemic.. Many complications and comorbidities, including an NSTEMI he sustained the day he was admitted to ICU. My emotions feel basically paralyzed right now but I've had to think a lot about what I've learned from your work over the past few days during discussions with doctors, and it has made my process of understanding what has happened at least a little easier to go through. Please continue to make the things you make, it's easy to claim in the abstract that what you do makes a difference but I can tell you from my own heart right now that it really does

[@lydiacopes5687]

I'm sorry for your loss and glad you're finding something to help at least a little.

[@RICDirector]

I am so very sorry for your loss. Hope things are starting to smooth out a bit now for you.

[@mr2octavio]

I'm terribly depressed and I was watching your video just to avoid my reality, and my mind kept on drifting, but then you come up with this funny mustache at 7:50 and it got my mood up. Thanks

[@marcelostringer]

I can tell you had fun mixing up the green screen and beard combinations aha

[@brennenlord8427]

The reincarnation expansion pack joke had me actually laughing out loud

[@justindavis6406]

I love how professional this guy's sense of humor is

[@D-Man_Jam]

Exercise has been the best thing that's happened to me in two months. I've lost 20 pounds already, feel fine, and plan to continue with at least an hour of cardio daily for the rest of my life. Edit: about 45 now

[@victoriakleber1397]

I am down 50lbs and my BMI is now normal. I am 54. Daily workouts alternating cardio/kickboxing/kettlebell/dance with Pilates/Strength/Yoga. Yes I increased my fruits and vegetables and cut the junk, but it was exercise that did this!

[@D-Man_Jam]

@@victoriakleber1397 Good for you man. I'm wish more people knew the magic of being healthy.

[@pk3]

20 pounds in 2 months!? That can’t be all just from exercise. You did some drastic diet? (I hope I’m not offending you, I’m just curious about the drastic quick weight loss)

[@D-Man_Jam]

@@pk3 yes, I did drastically change my diet. But nothing too restrictive. I've also recently changed to a fully plant-based diet, which is going well. Exercise just absolutley skyrocketed my results. Made them very consistent until recently.

[@RICDirector]

@@victoriakleber1397 Ye gods. You scare me.

[@ElksuGuitar]

1:58 Not only do they drive on the wrong side of the road in UK, but they also drive backwards

[@MedlifeCrisis]

Cambridge is quite a backwards part of the country

[@anonimushbosh]

Wrong? Two thirds of people drive on the left (thank you India)!

[@duncanhw]

Those cancel each other out, don't they? Assuming the drivers sit in the boot, they're driving on the left side of the road

[@heh2393]

@@anonimushbosh Only "Two-thirds" lmao

[@meretriciousinsolent]

@@anonimushbosh thank you Terra, thank you, thank you, silence...? (Sorry, were we not singing Alanis Morissette...?)

[@JanBabiuchHall]

11:11 it werks! IT'S WERKING!! _lighting strikes nearby_

[@namewarvergeben]

I appreciate the effort that was made to avoid continuity errors...throughout the whole video. I didn't spot a single one.

[@jimbobur]

Does exercise also give you the ability to knock out a full beard in 5 minutes, or is that a perk of being a doctor?

[@coin5207]

Probably one of the perks of being Indian. They do have some nice beards over there

[@WanderTheNomad]

This comment gave me severe deja vu, but I have no idea why.

[@jimbobur]

@@WanderTheNomad That's what you said last time

[@nialltracey2599]

He visited the UK's biggest transplant hospital. This can be no coincidence!!

[@billincolumbia]

He's prescribing himself testosterone supplements?

[@MrFunguspower]

That "reasonably fit consultant cardiologist" did the most 4th dimension humble brag I've ever seen in my damn life.

[@YourPhysicsSimulator]

So basically the best medicine is to get fit. I'm impressed that it literally reduces cancer risk

[@MazHem]

Though in related to chubbyemu's latest vid... not pushing yourself too hard especially if you have sickle cell trait

[@musaran2]

It's backwards. We are *not* "designed" to couch potato. Doing so does not run "intended" metabolism for health.

[@sonkeschmidt2027]

@@musaran2 yeah, it's kind of funny when we consider normality as a medicine... I get the feeling that this wants to tell is that we took some wrong turns somewhere... =)

[@justindavis6406]

Being in good health (w diet and exercise) reduces probably 80-90% of the probability that you'll develope ANY kind of ailment. I'm not a doctor, but it's gotta be close to that.

[@whirlwind872]

@@justindavis6406 lmao you just completely made up that number with no evidence or basis for it whatsoever, other than "I'm not a doctor, but it's gotta be close to that" Why even make the comment when you've contributed 0 value to the conversation, just a fabricated statistic?

[@Graham_Rule]

I'm in awe of the careful scripting and filming that must have gone into making this. Or did you just record the whole thing about 5 times, shaving a bit after each, and then work out the rest in editing? Anyway, it was worth if for the croissant. I'm feeling guilty now so will go for a run as soon as it is a bit cooler outside. I'd be interested on your take on the accuracy (or otherwise) of consumer goods that estimate VO2max. My Garmin watch says mine is 41. Just how big a pinch of salt should I take with that?

[@StoutProper]

How do you get your Garmin to measure it? Can't find that function

[@Graham_Rule]

@@StoutProper I have a Forerunner 645 and it is on one of the screens as well as on Garmin Connect.

[@MedlifeCrisis]

Yes I need to look into this properly. I can tell you I formally measured my friend's and it was 34. Her Garmin said 44. That's just one data point. I did search the literature a few months ago and found almost nothing. Will do some homework.

[@StoutProper]

@@Graham_Rule ok I've got a connect solar I think, it measures the oxygen % or something but I've not seen a vo2 max. My resting heart rate is usually under 50, had it down to 44-45 regularly a few years ago, dunno if that's accurate or how it relates though

[@StoutProper]

@@Graham_Rule or is it an instinct?

[@GotDamBoi]

I've been through phases of being an absolute cardio freak and a complete couch potato over the past decade....you don't realize how much consistent exercise helps you until you stop doing it. If there ever was a panacea in medicine....it's gotta be consistent exercise

[@ian1352]

I've never found it particularly beneficial, even when I was exceptionally fit.

[@nicolecmoucheron]

This was very very interesting!! Appreciate your editing skills, specially your floating head, multiple appearances at the end and the continuity with the beard. Watching once is definitely not enough, it's hard to focus on the information and on the video itself, thanks for this!

[@ishanpatil6951]

mitochondria is the croissant of the cell. I will keep this in mind for my upcoming cell test

[@G625-s1c]

biggest tip i have for getting into exercise as an adult is join a sport. could be a local jogging group, a weightlifting class, softball team, etc. we forget that when we talk about how easy it was to be active when we were kids, that we were also having fun with friends while doing it.

[@aileencasey2083]

Precisely!!! I only started consistently exercising, and enjoying it, after I joined a Pole Fitness studio! Doing a sport you enjoy, or doing exercise with friends, helps a ton

[@choirgrrrl1257]

Rohin’s facial hair is like Mark Twain’s characterization of New England weather. Don’t like it? Just wait a few minutes.

[@AddySwann]

What weird timing. I just applied to join papworth as a trainee respiratory physiologist

[@ToxicHorsePucky]

“That’ll be ATP” sent me for some reason. Thank you for relieving my depression for a few minutes.

[@TheConjurersTower]

Awesome profile pic, he looked so excited when he set that thing off...XD

[@Tricia_K]

Yeah, the ATP thing made me literally snort with laughter, which was kind of embarrassing for such a dad joke! [edited for spellcheck fail - I didn't actually lose height at all!]

[@furlizard]

Does it mean 80p?

[@ToxicHorsePucky]

@@furlizard indeed

[@wakingcharade]

watched this video while jogging in place to get steps in (its approaching 40c and humid so I'm decidedly inside and treadmill-less).I retained very little of it, and none of the technical stuff, but I think Rohin was telling me I was doing a good job, so I'll take it.

[@johnladuke6475]

It was about how jogging in place can make your heart explode, you need to stop right away!

[@sicko_the_ew]

From my own experience, the problem rapidly becomes one doing too much, when it comes to exercise (starting as a long time sedentary creature, glued to some couch, initially - so maybe sessile is a more accurate description). However for the relatively short time between starting and beginning to overdo it, there's a time when the most important cue is something like "Whatever you do is Enough". I've decided to "go and exercise" before, tried to run "just a few km", run out of steam after say 30 meters, and, from this, realised "it's hopeless". And the secret is, NO, it's enough. All that's needed is to Do Something. Forget that they made you run round and round the field as a kid. That's not the standard. The standard is to just Do Something. And feel pleased with that, because though it might seem like too little, it's ... (..?) ... yes! That's enough. That's plenty. And it makes a difference. Anyone (no exceptions) who just goes and does their "pathetic little inadequate almost-nothing why-bother" regularly (and takes rest days in between to recover) will reach the point where the long term problem is going to be with doing too much. (Just remember that, anyone deciding to humour those who say your walk is plenty of exercise, by giving this a go.) Sorry I'm going on, but this has transformed my life. I've ended up losing condition, and going almost all the way back to the beginning again, for various reasons (hospital, most recently), but I know how it works. "Just go and do that little walk." Then let the body have some time to repair whatever got a bit hurt by it. Then do it again. Little by little, keeping the focus on enjoying it now, rather than reaching some absurd little goal in 6 months time. Do the little. It's enough. And if it's fun, let that extend to running a bit, if you like. (And if not, walking is excellent exercise, so keep it enjoyable, and walk.) Regularity is what matters most (except for not doing too much. Careful. One day you're going to have to navigate round all sorts of hurts and injuries because you overdid it again). Regularity will take you thousands of miles. And the way to manage regularity is to keep it enjoyable. Difficult instructions then: 1. "Just do something". 2. "Do it again." 3. "And again." 4. "Easy, there! You're going to hurt yourself if you carry on like that" 5. MAKE IT FUN. (And remember it's actually easy to start all over again. Don't groan and say, "Oh no, I have to start all over again," say, "Yay! I can start all over again!")

[@legrandliseurtri7495]

I'm a little confused by your comment. If you slowly increase the quantity of your effort, you likely won't ever ''do too much'', cause the body will adapt to it. The brain sends pain signal way before you're actually in danger of hurting yourself, so unless you've got either a really strong mental focus, or you're on a high level of competition, you're probably gonna be fine. Obviously, the older you are, the more careful you need to be, but I don't think it's nearly as much as a risk as you make it out to be.

[@sicko_the_ew]

@@legrandliseurtri7495 This is possibly a bit age dependent. If you're young enough you can pretty much just destroy yourself, and then wait overnight to rebuild your ruins; but as you get older, there's more risk that this version of the pain feedback loop won't save you from your bursts of enthusiasm. The thing is that e.g. while you're running, you can (possibly even inevitably will) experience euphoria that just shuts up all those pain signals till later (when you're finished). I suppose the evolutionary drive to keep running after our prey even when it's doing a bit of damage kicks in, or something like that. Pain doesn't always protect you, and if you're old, you pay a heavier price for that than if you're still bulletproof. I know that as soon as I got a bit fit I started to hurt myself (even though I take great care to avoid that). I think too much fitness advice is essentially the kind that enthusiastic high school P.T. teachers give: "Exercise is Sport" - i.e. ultimately measured against some or other competitive standard that 1% (to overstate it) can aspire to, instead of just getting yourself moving around in ways that keep/improve things like your very own personal mobility (where even the guy in the wheelchair becomes his own standard). In many cases it goes beyond this to "Sport is athletics". - a competition - rat race simulation. This misguidance tends to get stuck in the heads of us oldies (and, far worse, tends to put off the young people who could benefit from amounts of exercise the PT teacher would've laughed at), and it amplifies that problem with the loss of pain feedback when things are going "too well" in e.g. a run. From the outside, it might appear that I, for instance, am shuffling along, wheezing, and barely moving faster than a walk (I exaggerate - because that's more fun, I suppose), but from inside my head I will sometimes be having a "fantastic run". And then something tempts me to push it a bit (for WHAT?? -- ... but anyway ... ) and the euphoria loop trumps the pain loop again. End result? That evening I receive a reminder from my knees that cartilage and tendons, and all those things adapt much, much more slowly than do muscles. Pain arrives later on to help me not hurt myself while limping around the house.

[@RICDirector]

THIS. I start with as much as I can *easily* do, then return to start. The next day, a little further, and so on. Gradually you wind up doing more than you ever thought was going to be possible, and it feels awesome! (Of course, then I too went sessile and have to start all over. Thinking of you!)

[@sicko_the_ew]

@@RICDirector Oddly enough, I'm back at the beginning again (again) for various reasons. So almost as if to cue your response in (thanks BTW) , my ankle that sometimes gets sticky has gone sticky again, and made this "rest time" come to pass. The other day I tried a new side road (because I was just walking, and walking is a more exploratory mindset than is running) and was surprised to see just a few houses in from the busy main road there's some countryside hidden away there. There were even horses in one garden. I'd have missed that If I'd just kept perfectly regular, running. (And it's enough. It has to be, and it has its own advantages.)

[@milenarossi5600]

​@@sicko_the_ew thank You so much for your comment. Started today an exercise, I suffer for depression and anxiety. The boost of confidence after the workout was incredible! Thank You again wherever you are (hope you are ok!), this comment answers some of my fears

[@beataks8859]

I see you are developing your editing skills. The floating head is a nightmare fuel. Well done!

[@marekholub8668]

I'm having flashbacks to your video about cyclists dying from "being too fit"

[@eureka5701]

same it's all i could think about haha

[@allenthewizard7627]

Nice throwback

[@rbanerjee605]

They did drugs which thickened blood into porridge due to the increase in RBC

[@ibraheemali7028]

R Banerjee EPO to be exact.

[@rbanerjee605]

@@ibraheemali7028 thanks!

[@coin5207]

7:28 here I almost thought I had witnessed a glitch in the matrix but then I realized it was probably just your great comedic timing and fabulous editing skills

[@chrisf1600]

And again at @9.26 Totally unprofessional ! Someone please fire the continuity editor.

[@lynb87]

I hated exercise as a teenager and then found ways to like it as an adult and then got long covid almost a year ago. I've kept up strength based exercise but am just starting light cardio again. I'd love to know what has changed in my body and what is changing as I seem to slowly get better.

[@ivoryas1696]

I'll remember pH, sure, but my main takeaway from that section of the video was that the Mitochondria is the 𝒸𝓇𝐨𝒾𝓈𝓈𝒶𝓃𝓉✨ of the cell. That's for the info!

[@JanBabiuchHall]

Keep the handlebar mustache. I don't care if you've shaved it off already, obviously you don't take time to heart.

[@georgf9279]

Horseshoe moustache, but yes, it's magestic.

[@ballboys835]

Rohin's facial hair must be one of those time crystals I'm hearing so much about nowadays

[@Gaspode_]

Can I just say how much I appreciate the efforts you went to for the sake of continuity,

[@LongshanMusic]

Your comedic sense is Mozart-like: subtle and perfectly balanced. I appreciate the attention to detail. 🙏

[@vittocrazi]

mozart liked poop jokes lol

[@condor2279]

Yeah Mozart had a really immature gross sense of humour. He even wrote a song called "Lick My Asshole" or something. True story.

[@deroffi1572]

Man, I would really like to know who and why gives a video like this a thumbs down. There's knowledge, humor, interesting and kind people, excellent editing. What else could you wish for? And all this for free! Some people must be so bitter.

[@mmps18]

"emphasis on the old" ahahah! I enjoy your sense of humor and knowledge so much!!

[@MijoShrek]

Ive struggled with undiagnosed adhd/bi-polaris. Spectrum disorders, have kept the to myself because soo many people use metal health disorder nowadays as some sort of in special crutch badge. I started bicycling during lockdown in rural suburb area of the states and its been some sort of mind shift feeling and awakening to the benefits of exercise that then funneled into a lifestyle change to feel energized with health instead of always some drudge being overweight as well. I post 80 pounds in just under 2 years, feel more at ease from stress after a good workout,more clear headed,and seeing the transformation of my body and mind was profoundly empowering and taking ownership and accountablity with my health was and has been a game changer. I did it for my own healing of my spirit within all that and when I started seeing the eyes that would be looking at me from women I've never experienced before and that was just an aside that will get a put a fire under a guys ash for real for real..

[@scienceisdope]

The quality of jokes you interleave in your content🔥🔥

[@DomyTheMad420]

"ugh. another youtube video on health and how they know best about working out" (other voice in head) "yeah but it's MEDLIFE crisis. you'll probly die of laughter" "fair point."

[@Aciek25]

That continuity joke was hilarious! It didn't get old after 20 times.

[@davejs95]

I’m a Pulmonary Critical Care MD in US. Thank you for this video (and your videos in general). Only a few of my American Cardiology colleagues are interested in CPETs. This is my type of video! I am trying to get my interventional cardiologists to get an exercise setup for the cath lab. Sir, you are a scholar and a gentleman.

[@RICDirector]

Sure wish my insurance would cover it... :(

[@chasingsystems]

Doc, the NHS has pushed a lot for vaping as a strong solution to the global smoking pandemic. What's your opinion on this? What is the harm potentials around vaping and the presence on high levels of nicotine on cardiovascular health? I don't expect you to answer this in a comment but I think it would be a cool video idea!

[@SuperShado101]

i am skeptical of the idea that vaping is better for your health than smoking. It is however a great tool for ending a nicotine addiction

[@ulwur]

I'm no doctor. But nicotine is from what I know harmful to the cardiovascular system. Smoking hits the lungs as a bonus, so quitting inhaling burning stuff is always good.

[@ian1352]

@@SuperShado101 There is nothing wrong with using nicotine.

[@ian1352]

@@ulwur It is harmful. If you pour nicotine onto heart muscles. So as long as you avoid soaking your heart in nicotine you should be fine.

[@ian1352]

Vaping tends to deliver nicotine more slowly and in a form that takes longer to absorb. That's why some smokers don't take to it. Otherwise all evidence points to vaping being less harmful. Ultimately though I don't get people's obsession with pastimes of others. If someone wants to vape I say let them. They're not harming me and I certainly don't want to encourage the nanny state's bean counting attitude to life.

[@diagorasofmelos4345]

I suppose there's worse side-effects than enhanced lung capacity and muscular hypertrophy.

[@Walter-McIntyre]

Man, I wish this had come out a few weeks ago while I was in A&P final exam prep, this would have helped me study the heart so much more enjoyably. I did a great job as is, it just wasn't as fun. That said, having completed that has helped me even get more of this knowledge stored in my brain and will help me with future patients as a nurse haha

[@meretriciousinsolent]

That's almost as big a flex as "mine was 48"

[@sgdadfgdfgadbdfbd]

lmao 2 minutes in and youve made me laugh like 5 times. your humour is incredible

[@sgdadfgdfgadbdfbd]

your mustache keeps changing lmaoo

[@YukikoOdair]

lol thanks for motivating me to run on a rest day! I'll re-watch this every time I don't feel like running :)

[@BrianPeiris]

Thanks!

[@jacklollo2506]

I already miss the random rooms in the hospital that you used to film at 🙂

[@aymeemortensen93]

I enjoyed the surprise moustache at 9:28. I laughed out loud! Great video and information!

[@Ana-dx7wk]

Just as cool and interesting as always. Thank you very much for your didactic dedication! I would love if you could someday make a video on the impact of obesity on heart performance and it's health consequences. Most people intuitively know it is bad, but seeing a breakdown from not only a professional, but an specialist at that, would be treat. Keep it up! 👍

[@Karikato]

I just could not stop watching the ad in the end. Excellent work, Doctor. 👏

[@fifski]

'The mitochondrion is the croissant of the cell' wait till Chubbyemu sees this!

[@ConnorNolan]

You were great on Ted Lasso last night. Glad you’ve finally found your true calling as a football coach!

[@WilliamChan]

Next time, try leaving only your sideburns connected to your moustache like they did in Victorian times :)

[@oldandstillhere]

The continuity in this video is incredible.

[@meosh930]

"Mitochondrion is the croissant of the cell." My whole life has been a lie! It has turned upside down.

[@spoopyscaryskelebones3846]

D: oh no!

[@aga5897]

Frabulust reflectid glory ! The guy at 11:24 is obviously controlling the machine with sheer will alone. Cardio Wizards are truly awesome ! Great video furry-face ;)

[@KathrynsRavens]

I'm so glad the facial hair continuity was intact for the whole video.

[@tankgirl9324]

I love the humor you've added into this knowledgeable video. Well done, well done!

[@sanches2]

Mate i'm 136kg but actually going up to the 25th floor and back(from the 6th) because of what you said:) and back infront of the pc :)

[@bobman929]

Walking up and down stairs is an amazing exercise. Cut out some of the sugars in your diet and you'll see results for sure.

[@beeble2003]

It's hard to interpret the VO2-maxes for race-horses and sled dogs -- are they scaled by body mass? If they're not, it's hardly surprising that a horse that weighs several times as much as me is capable of using several times as much oxygen as I can, but pretty amazing that a dog a third my weight can use several times as much oxygen.

[@Rain_MG]

I must be broken or something, I feel so much misery when I exercise although I am relatively fit, it does not improve my mood AT ALL

[@blah914]

maybe try something different? im in absolute misery when doing cardio, bired out of my scull with yoga, but quite happy when lifting weights 🤷‍♀️

[@lschmidt2405]

I'm the same, so l listen to audio books while I walk. And l make myself do this as often as possible as l feel so good when l stop!

[@subjectline]

Definitely try something different, dancing is a good one. Any kind, as long as you like the music!

[@catawalks]

Best sponsor segment I've ever seen. NGL, usually skip them, but this one had me entranced.

[@MissesWitch]

"What's that?" "Oh that only seems to be in the Buddhist and Hindu expansion pack" Haha, I love it! I love your sense of humour on this one!

[@nikkirica4410]

This video was unsettlingly good. Many thanks, good sir

[@riverground]

Thank you that was both informative and entertaining

[@o0Avalon0o]

1:40 is a really shocking but important visual to understand the symptoms. So many times I've wished for a visual representation of symptoms only to find a sea of unreliable sources. This is much more helpful.

[@durere]

You know, you're really putting a dent in my theory that doctors are out to get us.

[@a-dashof-pepper4710]

A fellow American I assume?

[@christophdoell3525]

I love how you visualize the process of creating a video by using differend beards at different times. Even better is your introduction of royal papworth hospital. Having footage departing the clinic, and as introduction you want an approach, you just play it backwards. Most people probably don't recognize or don't care. I love it!

[@DrWillWood]

This was brilliant, thanks! Two of my favourite things exercise and science :-D

[@felipemldias]

Hi Dr. Francis, glad to see you back. I enjoyt your imputs a lot, thank you for sharing!

[@phart325]

Ill go with my dance dance revolution

[@MedlifeCrisis]

It all counts!

[@ballboys835]

Nice, another DDR player 👌

[@phodon129]

Yo, DDR is hella cardio!

[@batlin]

7:36 thanks for not writing "powerhouse" there -- I've no idea why but that phrase seems to be the only one people use in throwaway references to mitochondria... it really grinds my gears.

[@kalebwhittingstall441]

I was recently diagnosed with PAPVR at 18 years of age, but a couple of years ago I did a vo2 max test (before we knew how bad my heart was) and got a score of 52... I have no idea what my body is doing

[@rootstone9883]

I love your dedication to continuity.

[@BukuruNturubika]

Listening to this doctor is the asmr I needed to increase my stroke volume 😏

[@Jade93972]

This is truly peak video planning and editing.

[@wurdnurd1]

Curious: any notion of how accurate the data from Fitbit is, especially if it's worn on a near-constant basis?

[@nu.wa.n]

Fitness watches seem to estimate vo2max within about 5% of true value. Chest straps are more accurate than the wrist sensor for obtaining the heart rate component for the estimation. You can actually do a similar estimation if you know your resting heart rate. The formula is VO2max = (Max HR/Resting HR) × 15.3 Max HR can be estimated as 220-age.

[@wurdnurd1]

@@nu.wa.n Ehhhh....I'm fine with +/-5%. Thanks for the info!

[@ryanatkinson2978]

I love the surrealist sort of continuity breaks

[@lohphat]

What is the metabolism of someone in intentional ketosis? Since there's an absence of glucose, ketone bodies are used for the Krebs cycle.

[@lohphat]

@@williamgolas5197 Your liver can't keep up with gluconeogenesis if under heavy physical activity. That's why you can fast for days and weeks while continuing heavy activity by using ketone bodies in lieu of glucogen for energy. Oddly people in this state are not dropping dead from hypoglycemia because they don't need all the glucose for energy.

[@lohphat]

@@williamgolas5197 I never said ketones were a full replacement but they do become the PRIMARY source of energy when you're in ketosis. I eat one meal a day and do a 3 day fast once a month and a 7 day fast once a year. In those fast s I'm doing heavy physical aerobic activity. I'm not hungry, and not light-headed. When I aggressively started keto and stopped carb intake I was losing 6 lbs a week at the peak. I lost 30 lbs in 4 months.

[@lohphat]

Ketones vs glucose with clinical data: kzbin.info/www/bejne/jqmqmoRtjteIj6c

[@lohphat]

@@williamgolas5197 Gluconeogensis isn't contested. My issue is the fact that it's not necessary for aerobic and cognition, in ketosis glucose plays a much smaller role for both. If you've never been in ketosis it's hard to explain. It's weird -- you're not hungry at all and you can think sharply and focus and do heavy exercise without riding the blood-sugar roller coaster. The energy from ketones is just there at a stable constant level. I could have gone past 7 days fasting but by day 5 I was not hungry but I missed the experience of food. It's really hard to explain. Missing food vs. being hungry are actually different experiences.

[@sorin.n]

Hey - glad to see that you are publishing YT Videos again!

[@EnderJBrito]

This man can time travel!

[@sparkelius]

Thanks for the video. As a cyclists getting back on the saddle after a 25 year break, helped me understand VO2 concepts much better.

[@ballboys835]

So I have a choice between the samsara and cartwheels? Or both?

[@aenorist2431]

Seriously good editing and overall polish!

[@DomenBremecXCVI]

So... To play the TierZoo videogame, I have to download Hindu and Buddhist DLCs?

[@Daniel-yy3ty]

Nah, those are only if you want to refine a human playthrough, it doesn't add much Evolution points allocation is vanilla

[@frankronald5761]

You are smart, funny and entertaining. Another great video. Thank you so much.

[@joebikeguy6669]

Choosing healthy long lived parents and grandparents. Check! Long distance runner/jogger 25 years. Check! Long distance lots of miles cyclist 20 years. Check! Result? Seventy one years old with no diagnosed diseases or need of any medications (so far). The one downside? Some incipient osteoarthritis. I think my shoulder actually hurts from patting myself on the back!

[@HartyBiker]

Watching the magical facial hair kept me watching though the ad. Well done man.