QI - Why Do We Sleep REACTION

[@Gaspode_]

I think the earlier point was: Sleeping saves about the same energy as resting does. So given that, why do humans unconscious for 8 hours, exposing themselves to predators, rather than rest with our eyes open?

[@GraceAlder99]

How this comment got 33 likes is beyond me?! What a dumb comment 😂

[@mlee6050]

I'm a proud human to say I limit it to 2-5 hours a day, also yeah I found it odd that others not close eyes

[@mp3vault]

You could try listening! I know it's difficult for someone with such strong, (incorrect) opinions - but you could give it a go... Your wife is very patient. I suspect she uses a fair amount of energy biting her tongue.

[@tinyderppotato5410]

😂😂😂

[@nautilus4599]

😂😂

[@Yogoniogi]

[@Writeous0ne]

how is it incorrect, if we don't know ;)

[@paul1mcgarry]

Jeez, I must have used up 200 calories listening to that argument.

[@TommyHax]

Your body burns a significant number of calories when you sleep; it might not seem that way but your metabolism is still firing, some people move around regularly when sleeping, and your other functions within the body are still at play. Don't forget, to maintain your weight most people need between 1800 - 2200 calories daily. That's partially because you move around and do exercise, but it's also that your body burns a lot of calories just performing its basic duties.

[@artspooner]

Yes exactly, that’s why to lose weight l, exercise doesn’t really help that much. It is good for cardiovascular health but for weight loss, then (healthy) calorie restriction will help more for weight loss.

[@joepiekl]

​@@artspooner Yep, I've never exercised to lose weight, but I'll be honest, when I did go running, I was amazed how long you had to run to burn off a relatively small amount of calories. But when a personal trainer has a client that wants to lose weight (which really means lose fat), the first thing they'll do is get them on the weights. And that's because building muscle increases your passive calorie burning. Doing weights for 30 minutes might not burn as many calories as running, but having bigger, stronger muscles means you'll burn more calories while you're sitting on your arse watching TV.

[@mzaliwa]

I think she is comparing the difference in energy consumption when sleeping with the same time spent lying still but awake.

[@FedeMarco01]

If sleeping was just a way to save energy that would imply that by eating more calories you could go forever without ever needing to sleep, which obviously isn't true

[@nonautomaton6230]

Mr NIck seems to be arguing a case for having a bit of a sit down and a rest, occasionally - Nothing to so with the topic at hand, which is sleeping.

[@PHDarren]

05:42 you are talking about extra energy running about lifting things etc... But if you are awake all day just sitting down reading, watching TV, you are using basically the same energy as you are sleeping. So sleeping isn't saving energy over a day of being awake.

[@HenrikAskestad]

”As always I’m probably missing something…” Well yes, that’s why most of us keep returning to your channel.

[@Really-hx7rl]

Nick the human body uses energy when we digest a meal over a 24 hour period plus the brain is still active at night and that is one of the biggest energy usesr in the body. We still use a great deal of energy when we are sleeping.

[@Shoomer88]

I think the energy comparison is between lying down awake and lying down asleep.

[@andywatts8654]

Listen to the experts nick !!!

[@briangeorge286]

Laying in bed asleep uses the same energy as laying in bed awake, thats the point youre missing.

[@cahan557]

I would think that lying in bed asleep would actually burn significantly calories more than lying in bed awake given all of the metabolic processes that run while you sleep (brain “memory sorting”, immune system maintenance, tissue regeneration etc)

[@mardymonkey]

Nick. Sleeping versus simply resting.....not sleeping versus being active.

[@TheDarkhorse1947]

Goodness gracious Nick you over think far too much.

[@thegroovetube3247]

Not exactly - it's the inability to think that's the problem.

[@corbuzchristi365]

Most Americans over analyse, it's a culture thing that shapes their thought process.

[@farmergeddon7527]

⁠@@thegroovetube3247...is the correct answer! 😂

[@Stuart_Cox1969]

@@thegroovetube3247 Not the first time he's argued with the EXPERTS at QI, as well as others, Clip-"here's the PROVEN FACTS", Nick_"nope I know better and disagree with all the proof because I'm American", I'm really getting tired of him and that bloody intro he does, I'm just gonna go ahead and unsub.

[@ChingChangWallah.]

@@Stuart_Cox1969 QI "Experts"? Interns surf the internet for the facts. AKA "There's no such thing as a fish".

[@richardscratcher6075]

Dolphins sleep with only one half of their brain at a time, while the other half stays alert to breathe and watch out for dangers. For humans, someone has to take the first watch.

[@cahan557]

I think this is a common feature of almost all marine mammals since they rely on movement to survive (dolphins and similar non-gilled marine mammals need to go to the surface for air and gilled mammals usually rely on movement for water to pass through their gills). It is interesting that even animals that literally cannot survive being unable to move for a period of time still sleep even if they have adaptions to circumvent death.

[@xaj1543]

Oh, so you’re missing something, how very unusual. You may be on your feet all day at work but at the same time, you only have to utilise a very small amount of brain power, (just as well) even though, unthinkably, that involves teaching.

[@chrisparti]

The difference they were describing was between being awake and asleep, not between being awake whilst doing an activity and asleep. I used to run on a running machine that told you how many calories you'd burned, and you'd be surprised at how far you have to run to burn 107 calories (107 calories is the UK defined unit of one KitKat bar {two fingered})

[@outdoorsocialist8774]

You can dismiss the things we do know, and working out how many calories we're burning is something we do know so can be dismissed as the reason for sleep.

[@helenwood8482]

She dismisses it because science has disproven it. We don't know the purpose of sleep, but we do know that isn't it.

[@easterdeer]

Happy Easter guys - thank you for the QI reactions! 😄

[@kieranclarges2514]

6:30 Nicks argument reminds my of the religious 'God of the gaps' argument... "If we don't know something then it could be this/god", When the correct response to not knowing something is not to 'guess' but instead determine the truth through testing and experimentation. So when Sandi says we 'know' sleep is not to conserve or replenish energy, We 'know' this idea has been proven wrong, So Nicks argument it 'could' be is entirely based on what he 'wants' it to be.

[@seanhickling7340]

How is this so difficult to understand? The conservation of energy during sleep is about the same as resting such as watching television for example.

[@peterbabicki8252]

She's talking about sleeping, not resting. If we wanted to conserve energy, we could simply lay down and remain conscious the entire time, which would effectively be the same in terms of energy conservation as sleeping. It's strange from an evolutionary perspective, because during sleep we're essentially easy pickings for predators.

[@BoringReviews]

I know she’s not talking about resting. I must not be aware of how exhausting it is to sleep.

[@mimikurtz2162]

@@BoringReviews This was the third of your reactions that I've watched, and it is apparent that you're not aware of much at all. That, along with your lack of comprehension, wit and logic means I won't be watching a fourth.

[@4Kandlez]

If sleeping was just about saving energy you could just eat something to give you more energy and never have to sleep

[@BunniMonster]

Teachers BTW.

[@stephenbrough8132]

There's a team of researchers working behind the scenes for weeks on all these interesting topics, giving the illusion the host is some kind of know all. Saw a TV show going behind the scenes when Stephen Fry was the host. Similar thing with Suzie Dent I think she once explained, on Countdown.

[@andywatts8654]

If you watch it regularly though they freely mention the team of ‘elves’ reunions the scenes

[@glastonbury4304]

Congratulations on the 100k 🎉🎉🎉🎉🎉

[@johnburton4577]

My guess about the difference in sleeping calorie use, and waking calorie use is when you are at rest while awake. ie. Not comparing to regular awake activity (ie. Walking, running, etc) is not part of the comparison.

[@yester30]

That

[@bertusvanhal8855]

In your sleep your move to, and your mind react at your dreams, that’s why you get sometimes awake in the morning with your body full of sweat, you have burn a lot off calories. Look at a sleeping person, they kick, move they’re arms, sometimes you cry in your sleep, you’re mind is not resting but let loose of you’re body and place everything you done that day in a part off your memory (the easy way to explain it), it replace your feelings, angry, happy or sad and give it a place where it belongs. Look at people who have a long time no sleep, 1. They can’t walk straight, react slowly 2. They can’t think logically, can’t concentrate 3. Have their emotions not under control.

[@nickrose83]

Dude is getting worked up but so wrong. The OVERWHELMING majority of your calories are resting calories. 20% of your entire energy use is just your brain. I barely burned much over 300 calories running a 5km run the other day. Your body is VERY efficient at motion, it does not account for most of your calorie use. The majority is just keeping you alive.

[@dallasgrant]

I sleep about 6-6.5 hours a night, I can function in about 3-4, but when I have nothing on I can easily do 12-14 hours. I've had people say that is not feasible, I don't know how to respond to that. There was something on another episode of Qi that said in the past, mediaeval times so to speak, they used to sleep in 2 cycles, they got up around 1-3 I think, do things and go back to bed and then wake up again when the sun rose to work, I suppose because they didn't have workable lighting to do much outside daylight, I found that pretty cool and I would give it a shot if I could.

[@virtualal]

Nick my old fruit - I think you have to accept that the info on QI gleaned from scientific research is a little more on point than your musings

[@veryvarley6706]

This was the difference between being awake Vs asleep rather than asleep Vs running a marathon. Homeostasis requires significant energy and is maintained both awake and asleep. The interest of the question comes from the idea we spend a third of our lives in a sleep ( vulnerable ) state for something with limited ( known ) benefit.

[@thomasdalby8420]

The point is that sitting down saves about the same energy as sleeping,but your not unconscious and prone to attack so the sleep part is not worth doing as eating a KitKat would make up the difference in energy so what's the point in sleep,your point is dumb because you assume that if you aren't sleeping your working hard,you are not you are sitting or lying down or standing,all of these things save energy but you can see and hear and sense danger so the sleep part saves virtually nothing in comparison but puts you in mortal danger

[@dango247]

Don't Question QI . Thay are always right . What ever you thought you new about anything QI will tell you different 😂😂😂😂😂

[@fade.2.black.ffd8ff]

When you are awake you can eat, this tends not to happen if asleep

[@jorDangerous701]

People arent considering 'Sleeping' vs 'Immobe'. if you lay on your bed awake for 8 hours, compared to laying on your bed unconcious for 8 hours, does the sleeping make a difference in energy conservation? You may save energy from not moving but thats not the same thing.

[@helenwood8482]

I can cope indefinitely on 3 hours. 4 is wonderful. 6 is too many.

[@ct5625]

Sandi is right. The energy your body uses to function doesn't change to any significant degree depending on whether you're awake or asleep. Of course, if you're running a marathon or going to the gym, your body uses more energy, but you're also consuming more to compensate for it at the same time. You don't run a marathon and then just not drink extra water or eat extra food to make up for the energy you're using. Your diet and consumption is directly correlated to your use of energy. So, the suggestion that sleeping is intended to "conserve energy" is actually proven to be nonsense when you look at the data and consider where that energy comes from.

[@custard71]

Nick dude, you need to chill on this one. You also need a T-shirt that's says "For crying out loud" 😁

[@richardwest6358]

At times you are becoming extremely offensive - calm down and try to enjoy QI

[@Blue.723]

Just because you don't know what it is, doesn't mean you don't know what it isn't. So you can dismiss some answers.

[@rikmoran3963]

You are missing something... the ability to think! 😂Why do you believe that the opposite of sleeping is running around being active? You could be awake and sat at a computer, or watching something on TV. What you are doing is comparing sitting still with exercising!

[@HalkerVeil]

You use a lot of energy when you sleep. It's just different parts.

[@johnallen5879]

100K - Well done, you so deserve this, fantastic!!!!!!!!!!!!!!! 👍👍😊😊⭐⭐

[@tonialaws2776]

Yes, you are missing something. Our bodies are incredibly busy whilst we're asleep. It is the time when we are not eating or moving around, so the body can turn its attention to healing. The body can get on with cleansing and generating cells whilst we're asleep. It strengthens the immune system, in children it is when the body grows. Read Matthew Walker's book 'Why We Sleep'. It's fascinating and will lead you to realise it is an incredibly busy and important time for the body.

[@CM-ey7nq]

Has anyone on this planet ever *wanted* to get out of bed when the alarm sounds? :)

[@shalokin]

we may sleep in order to dream, why do we dream?

[@petecaulton9271]

😂 I’m sure the information she has in front from top experts 😂 so funny Nick

[@oopsdidItypethatoutloud]

The noises in the house would freak you out Jodie... keep jumping from the thing under the bed 😮

[@ValGerard7112]

She's saying no one knows precisely _why_ we sleep, but we know what happens when we sleep. And she's not wrong when you consider why we need to allow our bodies to be vulnerable, because when we are asleep our eyes are closed, we are effectively paralyzed and even immediately upon awakening we are slightly disorientated for a few minutes until the spell of Morpheus wears off. So it doesn't make any sense when you contextually try to rationalize why part of our daily routine involves becoming vulnerable to the elements, outside influences and even violence. We really do put ourselves at the mercy of the outside world. And she's not wrong when she says that the theory about sleeping for energy conservation is ridiculous because as others have astutely commented, you still use energy while sleeping. Perhaps not a lot, but we really are expending energy at any given moment and sometimes after a fitful sleep, or a nightmare, you might wake up more tired than when you went to sleep. It really is food for limitless thought.

[@orcmcc]

It's not comparing sleeping against moving. It's comparing sleeping versus sitting in a chair. Those are practically the same, so what is the point of needing to sleep versus staying awake to do something like read a book? We know it's important because if you don't sleep it will kill you but WHY!? I want 8 hours to read dam it.

[@DavidSmith-cx8dg]

It's possible to rest without actually sleeping and rendering yourself totally vulnerable . As usual it's Quite interesting to think why ?

[@AdrianRussell-h8o]

I have to agree with some previous comments Nick. You don’t listen to what is being said. You jump in all the time with your opinion before hearing them out and then commenting. At the risk of seeming rude you appear to have the same condition as my wife had. That is, that her eyelids were connected to her jaw bone. Her mouth never stopped moving until she closed her eyes at night and then as soon as her eyes opened in the morning, her mouth started speaking again (just joking) Love your program and your interactions.

[@kennethburridge862]

Not knowing how something works are not the same as knowing that some things doesn't wrong.

[@hughtube5154]

Re: energy conservation while you sleep, grandmasters burn up so much energy when playing chess they actually lose weight unless they overeat beforehand. Point being, the mind burns up energy if it's highly active, so if you have very vivid dreams you could be burning up lots of energy, as you're in effect powering your own immersive hallucination, sometimes enough to make your heart race and leave you covered in sweat.

[@nautilus4599]

10:34 yep…still kind of missing the point! 😂😂😂

[@markrichardson3421]

Just realised Nick, we're wearing matching T'shirts. Think yours might be slightly smaller though.

[@MrVentrata]

Being unconscious as opposed to relaxing but being awake, doesn’t save much energy. No one says you have to run around and catch whooly mammoths, just sit in your cave and chill. So why expose yourself to danger by being unconscious. 😄

[@aledjango]

Bloody nora you got offended

[@mlee6050]

Since being 15 i stopped using alarm clock as it got annoying waking up then getting dressed and half way through dressing it goes off

[@Loroths]

I've heard another theory other than the energy saving one. I'm not sold on this theory either though it makes more sense: we need sleep to mentally process all the information our senses have consumed during the day. Like our brain needs to sort out and "file" it otherwise we become overwhelmed mentally. I've also heard dreams may be a by product of that process.

[@terryloveuk]

I saw the reference to the QI question about slavery in England. I think 2010 may be when the law against was put on the books formally. However back in the 11th century William the Conqueror enacted a law that selling a man into slavery was against the law - there was a fine paid to William for doing so (cash grab?). Like much of English/UK laws and constitution it basically was unwritten, 2010 seems to be when it was finally written down. There was a court case in the 1700s I think where the principle was set (based on the William the Conqueror edict) that any slave became free when they set foot on British soil (obviously didn't apply in the colonies as slavery persisted in the West Indies and probably elsewhere. The British, even when fighting Napoleon maintained ships to interdict slave ships off Africa and after the Napoleonic wars increased their efforts against slavery. I think it was 1838 that slavery was abolished in the British colonies, but they maintained and increased their anti-slavery crusade. This was a topic that was trending on KZbin some years back following a video/podcast by "Sargon of Akkard" or "The Lotu Easter" (not sure on which channel it was posted). It was reacted to by many other KZbinrs (search for "crusade against slavery"). Also other I would recommend videos by Candice Owen (for Prager U) but especially the many interviews, and reading from the books of, Thomas Sowell. Sargon of Akkard (Carl Benjamin) I find annoying in his presentation but he does research his stuff. Most impressive is Thomas Sowell's lifelong reasearch and writing on many, many things around slavery and black culture in the US. Candice Owens 5 minute "A Short History of Slavery" is quick cliffnotes. Sorry, nothing about the QI sleep episode, I missed the earlier one - sorry.

[@garyhutton2654]

As an Irish person when I am feeling down I come here thank you 🍀🍀🍀🍀🇮🇪🇮🇪🇮🇪❤️

[@Walesbornandbred]

Sleep is just when your body removes the "I'm tired" juice in your brain, and repairs your body. Different parts of your body slow down and different parts of your brain rest. Your body is very busy when your asleep. Many biological processes happen during sleep: The brain stores new information and gets rid of toxic waste. Nerve cells communicate and reorganize, which supports healthy brain function. The body repairs cells, restores energy, and releases molecules like hormones and proteins. I know I'm quite restless when I sleep. During REM sleep your brain is very active.

[@Pterodactylus548]

""Walking on a treadmill at 3.5mph (brisk pace) burns about 258 calories per hour if you weigh 150 pounds. Running on a treadmill at 6mph (a 10-minute mile pace) will burn approximately 680 calories per hour."" and these ones I found with few words and a "Enter" - ""Calculating calories burned while sleeping To estimate how many calories the body burns during sleep, a person needs to calculate their hourly BMR and multiply that by the number of hours that they sleep before reducing the figure by 15%."" (BMR is your Basal Metabolic Rate) "The exact number of calories you burn while sleeping depends on your age and weight. Generally speaking, sleepers burn between 40 - 80 calories an hour. So in an 8-hour window, you can expect to burn between 320 - 640 calories per night."

[@darrellpowell6042]

Spring break in USA. Easter break in UK.

[@TheWarpseed]

To add to what others have said your brain is a huge consumer of the bodys energy too and that doesn't really shut down when you're asleep.

[@LastValkirian]

a simple explanation as to why Sandy would dismiss a theory is that while we may not know the exact reason for sleep many hypothesise will have been presented for why we do it and then they would be tested and eliminated. in this case the hypothesis being to save energy was proven wrong as we burn nearly as many calories in our sleep as we do resting while awake, this leads to the question why do we need to be unconscious every night if it doesn't make any significant difference to energy restoration or conservation from resting when awake? and as stated in the show the answer is that we don't know.

[@grabtharshammer]

I'm not sure Nick thought this through. When you are sleeping it is often for around 8 hours-ish. Sleeping humans are still burning between 40 - 80 Calories PER HOUR, so in 8 hours you can burn 320 to 640 calories per night, just doing nothing. That doesn't include moving around, or dreaming etc. During the night your body is also doing things like supervising and controlling internal Temperatures. Everything depends on your BMR (Basal Metabolic Rate, which can be affected by things like weight) this refers to the energy needed for essential functions -breathing, circulation, temperature regulation, and cellular growth and repair. - Most humans use around 80% of the calories burned just for the BMR. So even when you are asleep you are still using 80% of the burned calories just to stay alive, the brain using the other 20%. So you are not saving much when asleep. BMR is also affected by Height & Weight - the larger the body the more calories needed - Fitness, Muscle burns more calories than fat even when resting. Loads of other factors can affect it including Genetics and Race. It is complicated, and various Medical institutions will provide you details on energy use and sleeping

[@ritahamblin1043]

My theory on sleep is to do with our spirit self. As there sometimes dreams feel so real. And our hearts beat 2/3 less than when we're awake

[@necessaryevil3428]

Slipped into a discussion about 'calories' when Sandi is CLEARLY talking about 'energy' consumption!! 🤨

[@Thisandthat8908]

kalories are literally a unit of energy.

[@Kropikovo]

The answer to the question "why do we sleep" is answered by answering the question "why do we go mental and then die if don't sleep for too long". That is the reason why we sleep. But to study that equals forced sleep deprivation of human subjects, which equals torture of fellow humans. And unless we decide that human torture is a good thing, we'll never really know. So, i think it's best to settle for being a bit ignorant, having to wake up for an unnecessary wee at 5AM, but getting some wicked dreams from time to time (#eatbluecheese).

[@darrellpowell6042]

Ants sleep. Two minutes per hour. 48 minutes per 24 hours. But for 2 mins per hour. 24 sleeps per day.

[@IceCenders]

No wonder they walk around looking drunk all the time xD

[@kirkstevenson1904]

Ok. Your body needs to expend energy every second of every day of your life, in order to maintain the function of your body (organs, muscle tissue, your skin -everything) If a typical man and woman were to wake up and do absolutely nothing for the entire time they are awake; and I mean nothing! A woman would typically expend between 1500-2000 calories, and a typical men between 2000-2500 calories, in that time. That energy need is still required throughout the sleeping hours, otherwise your body would atrophy, and you would experience organ failure, and death. The need for energy to maintain your body's function is constant - no exceptions. The energy you use in moving and functioning in your day to day lives requires extra energy on top of what your body uses as standard; quotes earlier. That is where the 'cslories in, calories out' phrase comes in. If you go about your fault lives without taking in any energy, your body will exhaust it's primary(carbs), secondary(proteins) and tertiary(fat) energy supplies. Once that is complete you will have no energy available to maintain your body's vital functions and you die. Hope this helps in explaining the energy requirement thingy you made comment on. Regards Kirkie

[@mefw]

Why is he so angry ? Oh I know he's right of course 🙄

[@bilbobaggins706]

You may be surprised to know that a 140-pound person burns off only 200 calories by walking for an HOUR! A 200-pound person would burn off around 290 cals. It's surprisingly little.

[@educatednumpty71]

The average person tends to burn on average 100 calories running a mile, 300-400 walking five miles depending on speed, roughly 10,000 steps. So if you think about it, resting for 8 hours and only burning 100 calories is about right.

[@glastonbury4304]

I think what she means is at rest and awake you only save 110 calories when at rest and asleep....stop over thinking nick as you are adding variables that aren't mentioned ...she means at rest......awake at rest and asleep at rest....nothing to do with treadmills laughing etc....😂

[@ConnorEllisMusic]

You're acting like Sandi destroyed your life's work.

[@js0988]

I... What.... Why.... Americans....

[@watchreadplayretro]

I was worried there for a moment that this was turning into QA - Quite Annoying! But all was fine by the end, and yes we should all try to find out our natural sleep cycles and keep to them as best as possible. It's interesting that when waking up naturally often I was waking up within 5-10 minutes of the same time each day without outside factors such as noise or light etc (with regards to going to bed at the exact same time each night). For work I now wake up at 4:40am and people gasp, but it's simply maths, I go to bed earlier to get up later and my daily life cycle adjusts so that I get tired at the right time and feel awake at the right time. I do think there is a lot more to it than what Sandy was saying, also Nick possibly Sandy meant the 'resting' phase of daily life being not active yet still awake and using that as a the level to compare. Anyway! Cheers m'dears!

[@ymtonemanlaer4088]

Life could not have started in the state we live now, sleep + awake. The state of awake, wakefulness is a product of the Evolutionary Process. Imagine a sleeping microorganism 'A' evolving into a complex organism 'B' (while still evolving in whichever direction), you will then understand that asking why B is not always awake is a dumb question.

[@timfeeley6748]

My understanding is we burn around 50 calories an hour while sleeping, this varies from person to person.

[@colinclarke7957]

Given that the human brain is a really sophisticated computer. Sleeping is just defraging your hard drive.

[@petertyson4022]

We have five reasons why we sleep. They didn't say all of them, except one. Mental health. Nick was right. Energy conservation. Yes. We are michine. Well our body is.

[@Staineless84]

You're using examples like at work, on a treadmill, etc, but how much energy are you using awake watching tv? Not much right? THAT is the comparison you just aren't getting here. Sleeping is very barely less energy than that so why can't we conserve energy by just staying awake and watching tv? You can even lay down to do it. That is what we don't know. Comparing sleeping to working is a pretty bad argument.

[@Some-dude-randomly-judging-you]

For (some) answers on Why We Sleep, check out a copy of a book of that name by Matthew Walker. It's a bestseller and with good reason. There's a lot we still do not know about the function and significance of sleep but loads have become known in the past few decades. One thing seems absolutely certain; we all need 7-9 hours of sleep and there is no such thing as 'averaging out'. The damage we do to ourselves by sleep deprivation is not undone by 'catching up over the weekend'. Since Nick mentioned people who say they get by with 4-5 hours every night... well, sadly it seems clear now that these guys are heading for all kinds of horrid things (early dementia, fast aging, obesity, depression among many other equally nasty possibilities) by denying themselves the huge benefits of the required amount of sleep. Sleep is not a mistake or inconvenience that we - and most other living things - can learn to do without. It's vital to us and we ignore its importance at our peril. So don't look apologetic when saying you sleep for 7-8 hours... you're very much on the right track on that issue :-)

[@davidcampbell64]

I also think your profession can make you wake up without the use of an alarm. I used to be a butcher and had to get up at 4 am every morning and now I wake up at that time every morning without the use of an alarm clock, body conditioning with a built in time mechanism is really a thing!

[@lemmingsplat5279]

When she said ‘that ridiculous’, she didn’t mean it in a higher-than-thou way, it was sarcasm, as in, of course that’s what the populous believe.

[@davidsouth9979]

This in the UK is a comedy show firstly and not a science show. You watch, you laugh, sometimes and maybe learn something. If you come home from work and argue over the points, that’s not the idea. It’s the same with WILTY, your not supposed to guess who is lying just be impressed at the ingenuity, in some cases, and have a laugh, in some cases. It’s not meant to be a competition. It’s a chill out, in some cases.

[@KaiOpaka]

Everyone tries to figure out who's lying on WILTY. (Unless it's a Lee Mack 'this is obviously absurd' story.) Obviously the fundamental point is that it's funny, but don't say it's not about who's lying. Of course it is. PS. You're*

[@davidsouth9979]

@@KaiOpaka Everyone? A 100% of viewers? How do you know? It’s not about lying, it’s about entertainment.

[@robertobrien5709]

Obviously they are talking from their view of evolution, but when you remember that we were created there are obvious beneficial reasons for sleeping especially within the context of a family and a marriage.

[@matthewwalker5430]

You may be moving less, but you're also not eating anything when you're asleep

[@alabama1413]

Congratulations on hitting 100,000 subscribers guys. Very well deserved 👏👏👏👏👏👍

[@s1lm4r1l6]

If we didn't need sleep for some other reason, why wouldn't we eat constantly and then we wouldn't need to conserve energy at all. Or just lie there with our eyes open.

[@brianalmeida1964]

While sleeping, your body still burns a lot of calories. In an 8 hour sleep cycle, the average human will burn between 320 - 640 calories per night!!

[@MrNikolidas]

I retain a bunch of useless information and can never remember where I read it so I can't cite a source, but I remember reading somewhere that humans (back when we had natural predators) would sleep in 4 hour chunks with a 90 minute-ish period spent awake in the middle. Presumably for guard duty. Apparently this is our natural resting cycle but I call BS, because I tried that once (not by choice, admittedly) and felt awful after waking up the second time. If it was our natural resting cycle at one point in history, it certainly isn't the case now.

[@oopsdidItypethatoutloud]

You have to do a one on Pronouncing British place names Say, Featherstonehaugh Happisburgh If you said Fenshaw, Hazebra You got it

[@souptec]

Surely sleep is more about resting the brain. If you did without sleep then you would not be very good at making decisions which could/would eventually lead to putting yourself in many potentially dangerous situations.

[@petermizon4344]

400 calories to sleep stayng alive, sleep I guess is used to get rid of short memory like a pc