Sleep: Why We Need It and What Happens Without It

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  • Опубликовано: 28 июн 2024
  • What happens when you don't sleep? And why do we need to do it anyways? Hank explains the science of sleep: the cause, the benefits, and who holds the record for going without it!
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    Thumbnail credit: Mark Sebastian
    Sources for this episode:
    healthysleep.med.harvard.edu/h...
    healthysleep.med.harvard.edu/h...
    faculty.washington.edu/chudler...
    www.sleepfoundation.org/articl...
    www.bbc.co.uk/science/humanbod...
    healthysleep.med.harvard.edu/i...
    www.nhahealth.com/science.htm
    blogs.discovermagazine.com/cru...
    phys.org/news/2011-02-why-do-w...
    www.ncbi.nlm.nih.gov/pmc/artic...
    www.sciencenews.org/sn_arc97/5...
    harvardmagazine.com/2005/07/de...
    health.howstuffworks.com/menta...
    www.scientificamerican.com/art...
    www.indiana.edu/~p1013447/dict...
    www.sciencenews.org/view/gener...
    www.sciencedaily.com/releases/...
    science.howstuffworks.com/life...
    www.pbs.org/wnet/brain/episode...
    ngm.nationalgeographic.com/201...
    www.sleepfoundation.org/articl...
    discovermagazine.com/2006/oct/...
    harvardmagazine.com/2005/07/de...

Комментарии • 4,7 тыс.

  • @artypreventscamping1645
    @artypreventscamping1645 8 лет назад +127

    "this is what makes you feel rested when you wake up".....bro when i wake up i feel like i just came back from the dead

    • @lucien6375
      @lucien6375 6 лет назад +1

      Derrick Ranshaw Same 😂😂

    • @pravinrao3669
      @pravinrao3669 4 года назад +4

      Well you did come from dead. Sleep is just death being shy.

    • @succ5666
      @succ5666 4 года назад +4

      ArtyPreventsCamping that’s the side effect of sleep inertia. When you get less sleep, you tend to get more sleepy when you wake up in the morning.

    • @jessicaevans7847
      @jessicaevans7847 3 года назад

      That is more rested than staying dead

    • @statueofliberty1132
      @statueofliberty1132 3 года назад

      i don't wake up rested either

  • @solum_mirari5925
    @solum_mirari5925 9 лет назад +496

    Once, after not sleeping for a night, after making cereal, I put the cereal in the fridge and the milk in the closet. As soon as I realized, I took them out.... Then I put them in the wrong spot... Again.

    • @Lena-ld1qc
      @Lena-ld1qc 9 лет назад +30

      Melissa Geckensmerf hahahahahahahaha!!! :D After more than 24h awake, I once went to get some fruits from the fridge, and instead I opened the fridge, put the knife inside and went back to work.Took me a while to even realize it lol! Your story beats it, though! Thanks for the laugh!

    • @orbemsolis
      @orbemsolis 8 лет назад +3

      Melissa Geckensmerf its that thing with your hands switching thingy

    • @NightHawkX321
      @NightHawkX321 8 лет назад +6

      +Melissa Geckensmerf I made a mountain pie and realized I forgot the bread. It was only pepperoni, cheese and mushrooms in the pie iron, and ruined it.

    • @iSugarHeart
      @iSugarHeart 8 лет назад +7

      +Melissa Geckensmerf Yeh i dont even need 24 hours of not sleeping i just had shitty dream and tossed through night did get soem sleep though. But fallowing day i cut myself peice of cake and threw knife into trash bin xDDDDD and then it felt like i snapped out of autopilot and asked myself conciously "The fuck did you just do" took me few seconds to realize , picked it out of trashcan and threw into the sink...

    • @miriamjimenez7579
      @miriamjimenez7579 8 лет назад

      I know the solution for that smart words smart words puns spanish words hoped the helped

  • @Yetaxa
    @Yetaxa 8 лет назад +354

    I'm sitting in my bed, very thirsty (and so probably dehydrated) at 3 am finding out all the ways I'm gonna die a slow and horrible death.
    This is great for my anxiety.

    • @fattyjill5082
      @fattyjill5082 8 лет назад +4

      +Yetaxa Youra jolly one now aren't you?

    • @mr.tomredtomcat4324
      @mr.tomredtomcat4324 8 лет назад +1

      have fun with that

    • @klaud1
      @klaud1 8 лет назад +5

      Did you try checking for spiders under your bed? That may help with the anxiety.

    • @superjojo555
      @superjojo555 6 лет назад +1

      wat anime is ur avatar

    • @Rockzilla1122
      @Rockzilla1122 5 лет назад +1

      hey also remember youre slowly rewiring your brain to the tiny animal bead of it that says everything is going to kill you, instead of the big meaty hunk that says to try to rationalize things
      so have fun with that one

  • @AnthonyTrifoglio
    @AnthonyTrifoglio 9 лет назад +506

    BuzzFeed's video "What It's Like To Have Insomnia" at 1:31 says
    "Science has not proven the biological need for sleep."
    ...this is yet another reason I hate BuzzFeed

    • @awcreamsoda7978
      @awcreamsoda7978 9 лет назад +121

      Anthony Trifoglio YES! I fucking hate Buzzfeed. They upload nothing but ignorance. If you have time, comment "a Buzzfeed a day keeps the intelligence away". This pisses them off.

    • @iSugarHeart
      @iSugarHeart 8 лет назад +20

      +Madoka Kaname But its accurately true. Buzfeed is not created to inform your brain but to spark second worth curiosity and since we're lazy fucks decission doesnt take long to make " Dooo i wanna see this" "I will have to click " "That wont take long" And there goes your 2hours of quality time with computer wasted on shit. You learn nothing but your stupid brain is entertained staring at idiots.

    • @pocok5000
      @pocok5000 8 лет назад +29

      +Anthony Trifoglio Unfortunatelly it's always more profitable to tell people what they want to hear instead of the truth.

    • @apenasmeucanal5984
      @apenasmeucanal5984 8 лет назад +15

      In short it's a network of clickbaits and that's why i hate it

    • @marcusbritt483
      @marcusbritt483 8 лет назад +1

      Really? Buzzfeed come on now man do a little more than that

  • @zephyrfyr
    @zephyrfyr 9 лет назад +768

    So basically, I shouldn't be watching this video at 3am right?

  • @dxburner222
    @dxburner222 9 лет назад +346

    Whenever I stay up past 24hr, I get really paranoid. I always think I see something out the corner of my eye.

    • @alexdariar1950
      @alexdariar1950 9 лет назад +3

      ***** I thought i heard The Grudge O-O

    • @Zyborgg
      @Zyborgg 9 лет назад +32

      dxburner222 same here. I can also relate to the thing he mentioned about speech. It gets really hard to convey thoughts. It also feels weird and "scary" to try to sleep when you've been awake for 24h+

    • @dxburner222
      @dxburner222 9 лет назад +2

      Ole Aron Aarseth idk what it is. I see something moving... Like a dark blur

    • @TheEliteDodo
      @TheEliteDodo 9 лет назад +2

      dxburner222 lol me too... im 26 hrs with no sleep now :)

    • @danteat8
      @danteat8 9 лет назад +4

      Yeah same thing for me I saw a white dot and when i look at it disappears it's scary as fuck and i got annoyed by it

  • @ReoHimZ
    @ReoHimZ 7 лет назад +303

    Im watching this to go to sleep.

    • @derekgoodejr8788
      @derekgoodejr8788 7 лет назад +3

      Me too

    • @Youmu_Konpaku_
      @Youmu_Konpaku_ 6 лет назад +3

      Me three

    • @Azrage
      @Azrage 6 лет назад +2

      FunWithReo Funny, I'm doing this for the completely opposite reason.
      Now that I've finished, I shall sleep.

    • @director00donut39
      @director00donut39 6 лет назад +1

      Was about to say, I fell asleep to this XD

    • @Just_Moon2004
      @Just_Moon2004 6 лет назад +1

      Me four

  • @combatboots3517
    @combatboots3517 8 лет назад +173

    I'd say, being sleep deprived is just as bad as being drunk.

    • @Physical-Philosophy
      @Physical-Philosophy 8 лет назад +26

      Way worse, the visual hallucinations and psychotic ideas are not part of a typical night at the bar. Well... Actually where and how do you drink my friend? 😂

    • @combatboots3517
      @combatboots3517 8 лет назад +15

      Tjebbe Ibsen I don't drink at all when I'm living at home but I do when I'm living on campus. Lol I'd be drunk over being sleep deprived anyday. I've been both regularly and at least youre having fun and laughing when youre drunk af. But when you're sleep deprived everything is just awful.

    • @gosick442
      @gosick442 7 лет назад +5

      Tjebbe Ibsen Lack of sleep has similar symptoms of having a hangover, excluding the hallucinations and psychotic ideas part, like headaches or migraines, dehydration, loss of energy, being sensitive to light and sound and feeling foggy. I would list more things but due to having lack of sleep I can't think straight XDD

    • @w33dnose
      @w33dnose 3 года назад

      Try both

    • @rey_nemaattori
      @rey_nemaattori 3 года назад

      Worse, because when drunk, 90% of the time it's hilarious even the simplest tasks are impossible or hard to do.
      When sleep deprived however, nothing is fun and you're generally not aware of how bad your condition is...

  • @carlosbaldellou
    @carlosbaldellou 8 лет назад +236

    Nothing like watching this after a restless night.

  • @AdobadoFantastico
    @AdobadoFantastico 8 лет назад +243

    I stayed awake for about 5 days once. It was surreal. Brain became increasingly dysfunctional and there were times while I was working that I wasn't really sure if I was conscious or not. But I was submitting work about every two hours during the five days, so apparently I was conscious.
    After the first full day I took a break from working to work out(not sure why I didn't opt to sleep, that was incredibly stupid), but I couldn't muster the energy on subsequent days. I definitely lapsed involuntarily on several occasions during days 3 and 4 for brief periods of time(5 or 6 minutes at the most). It took about three days to get back to sleeping a normal amount(slept about 14 hours, then 12 hours, then 10). Which is apparently about how long it took Gardner. But it took another day or two to not feel emotionally and psychologically drained.
    I wouldn't recommend it.

    • @AdobadoFantastico
      @AdobadoFantastico 8 лет назад +3

      ***** Yikes. How did that feel?

    • @dextermorgan1785
      @dextermorgan1785 8 лет назад +7

      I usually sleep 4-5 hours and i feel perfectly fine. I can function properly without feeling dysfunctional. I feel rested when i wake up. What bothers me is the myth/fact that you have to get atleast 8 hrs which in my case appears to be false. Dunno if i should consult a doctor

    • @AdobadoFantastico
      @AdobadoFantastico 8 лет назад +9

      Dexter Morgan I had a period of time where I slept around 6 hours on a regular basis and felt fine. Spoke to a doctor and he said that sleep need can vary a lot and people in their advanced age(60+) often only sleep 5 hours. If it takes you less than 20 minutes to fall asleep, I'm told that's a strong indicated you're not sleeping enough. But if you aren't passing out immediately and feel fine, I'm told it's nothing to worry about.
      Your homicidal tendencies, on the other hand, are definitely something to seek help on. However, I don't know if much advance has been made on treatment. So you can probably expect life in an institution of some sort.

    • @dextermorgan1785
      @dextermorgan1785 8 лет назад +3

      ***** Maybe anxiety, stress ort depression

    • @AdobadoFantastico
      @AdobadoFantastico 8 лет назад +4

      ***** yeah, that definitely sounds like a stress response. Seek a counsellor or psychiatric professional. If the first one doesn't help, don't be discouraged. There are bad ones and there are some whos approach just won't work for you. It's definitely important to have someone to talk to and feel comfortable being open with, especially someone who can give *good" advice.
      At your age, lack of sleep is highly atypical. Teenagers are typically expected to sleep *more* than the standard 8 hours because of growth and such.

  • @MareaRayneOleander
    @MareaRayneOleander 4 года назад +17

    It would be really interesting if they did a memory study comparing those who prefer to be awake at night and those who prefer to be awake during the day.

  • @Polaris_was_in_Denial
    @Polaris_was_in_Denial 7 лет назад +65

    *[manages to fall asleep during video]* *God damit*

  • @anzwertree
    @anzwertree 10 лет назад +109

    Have you ever been so tired you could not sleep? Strange feeling. Anyway, here I am once again past 1AM in the morning watching a video outlining the importance of sleep. Go home, irony. You are drunk. Or possibly sleep deprived. Now that I think about it, somebody should get the keys from irony. He should not be driving right now.

    • @OccasionalHaHa
      @OccasionalHaHa 10 лет назад +11

      computer = light

    • @LadyLahdeedah
      @LadyLahdeedah 10 лет назад +10

      My boyfriend is a bit of an insomniac. He found a program on the internet called Flux. It's a program that changes the colours displayed by your monitor when the sun goes down. He has told me it has helped him sleep better and go to bed at a better time. As, yes, the bright monitor will keep you awake a lot longer than you would have otherwise. Give it a try maybe?

    • @anzwertree
      @anzwertree 10 лет назад +5

      Thanks for the comments and feedback. I've had insomnia ever since I was a kid. Compound that with my deeply introverted overly analytical disposition, along with Tourette syndrome and severe OCD.
      Any hope in augmenting my sleeping prowess is probably an unrealistic expectation. The doctor gave me some drugs that works great for inducing a mild coma. Unfortunately, they also leave a dulling side effect on my ability to over analyze things.
      That seems to last for days afterwards. To most people that might be a good sacrifice. But I actually make a living from that ability. In this case, sacrificing my psychosis through prescription drugs isn't an option.
      Admittedly though, there is one drug that helps my Tourette's. It even helps my insomnia, and it doesn't adversely affect my creativity. But perhaps that is best kept to myself. In any case, I will look into the application. It's not like they are mutually exclusive. Probably be extra trippy and cool, now that I think about it.

    • @norahalajmi8543
      @norahalajmi8543 10 лет назад +1

      it's 1:51AM here so yeah ... i think i should sleep like NOW ! (or maybe not)

    • @honeyboyyoongi2515
      @honeyboyyoongi2515 10 лет назад +3

      It's 4:30 am where I live right now, and I should probably sleep xP

  • @HiAdrian
    @HiAdrian 10 лет назад +11

    This was a really good summary, not too dumbed down. Thanks!

  • @oxy6233
    @oxy6233 8 лет назад +75

    I haven't woken up and felt "well rested" in years, I wake up feeling worse than when I went to bed. anyone else like this? I only fully wake up at about 6PM

    • @bensonmutuvi8429
      @bensonmutuvi8429 8 лет назад +4

      See a doctor.

    • @Bazilisk_AU
      @Bazilisk_AU 8 лет назад +3

      Sounds a lot like the symptoms of glandular fever or chronic fatigue syndrome.

    • @jarmo_kiiski
      @jarmo_kiiski 8 лет назад

      Well, I fully wake up at 6AM ...

    • @stef6952
      @stef6952 8 лет назад +2

      Do you go to bed at the same time and wake up at the same time every day? If you don't have a normal sleep schedule that could be why

    • @DozerD11jr
      @DozerD11jr 8 лет назад +2

      Few days ago I didnt go to bed until 4:45ish and woke up at 6:40 and it's been the best I felt during the day in a while. Very strange

  • @pollacksify
    @pollacksify 8 лет назад +58

    I'm a recovering heroin addict and when i finally quit cold turkey i didn't sleep for 20 days straight. I think the only thing that helped me was resting pretty much the entire time. I would lay down to go to sleep, but my mind/body wouldn't let it happen (and RLS). BUT, i was still laying their barely thinking just lost in thought for the entire night. Granted i was a tragic mess it never felt like my body was about to turn off. Albeit it was the worst experience of my life and wouldn't wish it on anyone, I got through it and finally slept a few hours on the 21st day of sobriety.

    • @gamechangerbro777
      @gamechangerbro777 8 лет назад +25

      I wish you well in your recovery

    • @legostarwarsrulez
      @legostarwarsrulez 8 лет назад +11

      I'm not sure that is survivable. If it's true you should find a way to prove it so you could claim the world record.

    • @MuzikBike
      @MuzikBike 8 лет назад +1

      In order to break a world record, you must first break the law.

    • @pollacksify
      @pollacksify 8 лет назад +8

      shut your face! I have no interest in breaking the record. I thought about going to the hospital every day during withdrawal, but i never did go. Was not in a position to have a medical bill, my addiction had already put me in debt. Call it stubborn but at that point i would rather have died to be honest. My mindset was as low as someone can get.

    • @tinybullfrog1955
      @tinybullfrog1955 8 лет назад +14

      Congrats on quitting! And good health wishes to you in the future :)

  • @SuperParkour3
    @SuperParkour3 10 лет назад +31

    I should be sleeping now but this video seemed interesting.

  • @jrock1592
    @jrock1592 9 лет назад +257

    Try having insomnia, I once stayed up for 5 days and by the end of it I was convinced I was part of the MKUltra experiments and that I was the one who killed JFK

    • @TinRapper
      @TinRapper 8 лет назад +8

      5 days? woa 0.o

    • @jrock1592
      @jrock1592 8 лет назад +46

      You have no idea what your talking about. I went 5 days without getting a wink of sleep. I've gone without sleep countless times for 2 or 3 days and I've never experienced "micro sleep". By the way the official world record is 264.4 hours, that's 11 days. There's no way he would have gotten the record if he took micro naps that you've mentioned.

    • @niclouds5292
      @niclouds5292 8 лет назад +1

      +J Rock I am similar, but i don't get paranoid.

    • @TheGorillamilitia
      @TheGorillamilitia 8 лет назад +22

      +J Rock do you know what a micro sleep is? its essentially a skip in your brain function, half the time people are not even aware it ever happened. 5 days without sleep? without a doubt its doable, but micro sleeps would have hit you whether you like it or not.

    • @TheGorillamilitia
      @TheGorillamilitia 8 лет назад +5

      +J Rock as to your point, they allow for micro sleeps because, as the name suggest, they last for a very short time, and they are a biological response that cant be ignored.

  • @davidgold3nrose
    @davidgold3nrose 7 лет назад +42

    Wait - you feel *rested* after you've slept? I've been doing something wrong 😂

    • @Aeturnalis
      @Aeturnalis 3 года назад +2

      Turn your phone off. Even if it doesn't wake you up, the noise disturbs your sleep. I haven't had my phone on while I'm sleeping since 2006 and I almost always get good, restful sleep, and that's despite having a lot of caffeine throughout the day.
      Seriously, whatever they're calling you for can wait a few hours. Poor sleep leads to an early death.

  • @DanielRenardAnimation
    @DanielRenardAnimation 9 лет назад +139

    Makes me think about the 18 year-old Taiwanese guy, who sat and played Diablo III for 40 hours straight... got up, and died on the spot.
    The urge to be *ahead* of all his fellow mmorpg players ended up putting him... well, dead *last* (or make that 'dead first'?)

    • @victoriadeandrade7770
      @victoriadeandrade7770 6 лет назад +12

      im 50 hours no sleep now
      im alive
      edit: slept for two days straight worth it

    • @David-ud9ju
      @David-ud9ju 6 лет назад +18

      40 hours isn't really that long not to sleep for. The guy must have had some sort of congenital heart problem that probably would have killed him sooner or later anyway no matter how much sleep he got.

    • @dan240393
      @dan240393 5 лет назад +15

      David, I believe it was DVT (Deep Vein Thrombosis) from being sat still, in the same position, for pretty much the whole time. If he'd gotten up and shaken his legs out every few hours he'd probably have been fine.

    • @samrowe2889
      @samrowe2889 4 года назад

      I know when. Skyrim first camn out I played for several days without sleeping but i ate and got up and stood for a while too

    • @phaserisclasic8825
      @phaserisclasic8825 4 года назад

      I’ve done that survived but had an arrhythmia and seizures short answer I got lots of sleep in the hospital

  • @autumns9766
    @autumns9766 8 лет назад +557

    watching this at 2 am. anyone else?

  • @markvmammoth
    @markvmammoth 10 лет назад +11

    I think I remember that the Guinness Book of World Records noted that there was an elderly man in New Jersey that was studied in a sleep clinic who didn't sleep for 6 months. Some types of birds that have to migrate long distances over vast deserts have also been noted not to appear to sleep but apparently they engage in uni-hemispheric sleep (one side of their brain sleeps while the other is awake). Interesting topic.

  • @georgenelson9211
    @georgenelson9211 8 лет назад +63

    Im with ya Hank! Im a fellow Night Hawk!! Mornings are for the birds!!!

    • @taylorhansen2872
      @taylorhansen2872 8 лет назад +24

      +George Nelson Uhh... Not to be that guy but... uhhh... Hawks are birds...

    • @georgenelson9211
      @georgenelson9211 8 лет назад +9

      Night Owl then.

    • @user-ng6xy6bq9v
      @user-ng6xy6bq9v 8 лет назад +18

      +George Nelson lmaoooo are you serious niggaaaaa owls are birds

    • @Te_Elaine
      @Te_Elaine 8 лет назад +5

      +George Nelson OMG!!! LMAOOOOO!!!

    • @mostafajawad8249
      @mostafajawad8249 8 лет назад +5

      +George Nelson I think you need some sleep friend.

  • @Wubstep13
    @Wubstep13 8 лет назад +137

    Me watching this @ 3 AM knowing i have to get up for work at 6 AM ....

    • @shawnsterress
      @shawnsterress 8 лет назад +2

      +Grizzly lol i watch this guy all the time and my teacher for my collage gave us this video to watch to discuss tomorrow. Im pretty fuckin stoked honestly.

    • @nitesh903
      @nitesh903 8 лет назад

      +Shawn Shanks ME WATCHING 1:36 AM LOL

    • @felipeoyarzun5424
      @felipeoyarzun5424 8 лет назад

      n00bs, I'm watching this at 7am I haven't sleep a little, so unhealthy

    • @mr.tomredtomcat4324
      @mr.tomredtomcat4324 8 лет назад

      Felipe Oyarzún have fun

    • @Nuke_Skywalker
      @Nuke_Skywalker 8 лет назад +1

      +Felipe Oyarzún "n00b", a bunch of amphetamines kept me up for 4 days.

  • @Bat0541
    @Bat0541 10 лет назад +47

    ....I'm going to bed.

  • @RyanStorey1231
    @RyanStorey1231 8 лет назад +61

    So, you're supposed to feel rejuvenated and well-rested when you wake up, but I feel even more weary and tired than when I initially fell asleep the night before. What is the cause of this? Is this a symptom of oversleeping? Because admittedly, if I could get away with sleeping a full 24 hours and then some, I totally would.

    • @FutureChaosTV
      @FutureChaosTV 8 лет назад +3

      +RyanX1231 Too long is as bad, if not worse as too short. At least in my experience. 2-4hrs of sleep: I am fit until later afternoon when I really start feeling weared out. 4-6hrs of sleep: sleepy and tired.

    • @stuvs830
      @stuvs830 8 лет назад +7

      Have you ever been tested for sleep apnea? It can have those symptoms. Hope you're able to see your doc to find out what's troubling you.

    • @lucien6375
      @lucien6375 6 лет назад

      RyanX1231 It happen's to me too.

    • @___LC___
      @___LC___ 6 лет назад

      If you haven't found a solution, yet, look into how much of each sleep stage you spend per night. For example, I have no REM and little stage 3 or the recuperative stage of sleep. I wake up more fatigued and I find that substances, like caffeine, only drain the limited energy more quickly.

    • @theincarnationofboredom207
      @theincarnationofboredom207 6 лет назад

      I usually am tired when i first get up, but then get over it in a few minutes of standing up.

  • @winstontoskavich9047
    @winstontoskavich9047 8 лет назад +178

    Girl: Do you want to go out with me?
    You: Wait hold on.
    *1 hour of sleep*
    You: Sure!

    • @VienerSchnitzel69
      @VienerSchnitzel69 8 лет назад +3

      Change girl to guy and make Sure! to No!

    • @jalieyahwilliams3941
      @jalieyahwilliams3941 8 лет назад

      me etheir

    • @samanthacollins5610
      @samanthacollins5610 8 лет назад +2

      +Nathan Patrick Basically this decision is "so important" that he needs to sleep on it. However, 1 hour is a terrible idea. A full sleep cycle is 90 minutes, and it takes about 25 minutes to go into stage 2, which is when you get the best sleep. So 90 or 25 minutes would by a better idea.

    • @MinecraftEpicPlayer
      @MinecraftEpicPlayer 8 лет назад +21

      +Winston Smith More like 1 hour of being awake, since the only time a girl would ask you out is if you're dreaming

    • @winstontoskavich9047
      @winstontoskavich9047 8 лет назад

      True, true. :D

  • @Nemoticon
    @Nemoticon 7 лет назад +26

    Sleep, why do we need it? Because inflicting my self upon the world for more than 12hrs at a time would just be unfair to all and everything! A necessary evil easily avoided.

  • @shahrazade26
    @shahrazade26 4 года назад +5

    Never underestimate the power of good sleep habits. For many years I had a backward sleep cycle. I could only sleep during the day and then stayed up all night. It was really hard to get out of it. I thought I had a sleep disorder. I usually slept enough hours overall but it was never in a single batch. It was more like three hours here and three hours there. Anyhow, the interesting part is that three months ago I got a day job and I was forced to sleep at night for seven straight hours. It took a full month for my body to learn to sleep all night. And this was accompanied by amazing psychological changes. I went from being depressed to super happy. The mood change has no other explanation than the change in sleep schedule. Now I'm afraid of going back to my old ways and the only way to accomplish this is keep the day job until I die.

  • @juliahcornell
    @juliahcornell 10 лет назад +3

    Hank, you say it's bad to stay up all night, but you and John make so much awesome video that I just HAVE to stay up all night watching them.

  • @rugbyplayer9100
    @rugbyplayer9100 4 года назад +6

    One time I was driving home from a night out (probably 22 hours without sleep) it was 4 am and as I’m driving down my street, I swore I saw little kids playing on the sidewalk.

  • @AbdulazizUgas
    @AbdulazizUgas 8 лет назад +3

    I'm so greatful that my search engine actually is aware of me this much to suggest stuff like this that I have now broken down and am crying. tears of gratitude.

  • @jnobile22
    @jnobile22 10 лет назад +10

    Now i have so many "reasons" to sleep all day

  • @codpyry
    @codpyry 10 лет назад +16

    What happens without sleep you ask? A RUclips video watching marathon, that's what happens

  • @boogernights1
    @boogernights1 9 лет назад +69

    I'm watching this at 1:30 in the morning. Rock on.

  • @starless4146
    @starless4146 7 лет назад +21

    11 Days with out Sleep? Good Grief..I ..can't..even..imagine...that.
    OMG...

    • @derekgoodejr8788
      @derekgoodejr8788 7 лет назад +1

      Right 11 days!!! The longest i went was 3 days.

    • @starless4146
      @starless4146 7 лет назад

      Derek Goode Really? What was That like? How did you feel?

    • @quiayratreadwell6313
      @quiayratreadwell6313 7 лет назад

      Kenny Lee I'll try it and see if I die OK 😆

    • @starless4146
      @starless4146 7 лет назад

      I can have all your stuff in case you don't make it, right? :-D

    • @pranamd1
      @pranamd1 7 лет назад

      I've gone 3 days without sleep, due to a change in medication. I don't remember much about it beyond anxiety, specifically about not being able to sleep.

  • @GregTom2
    @GregTom2 10 лет назад +15

    Wait you're saying I'll die if I go two weeks without sleeping?
    Oh. I need to rethink that time management for my exam week...

  • @glorvalmacglorvas171
    @glorvalmacglorvas171 8 лет назад +35

    Sleeping for the brain to reorganize? So your basically saying that it writes all to ram during the day and then transfers to the hard drive at night? Or mebbe it just defrags the hard drive at night?

    • @glorvalmacglorvas171
      @glorvalmacglorvas171 8 лет назад +9

      Whoops, watched 10 seconds more and you said defrag XD

    • @yakarotsennin3115
      @yakarotsennin3115 6 лет назад

      Yes

    • @FloozieOne
      @FloozieOne 4 года назад

      I think defrags is probably more like it. The data is there but its all mixed up and needs to be weeded and organized. I expect the ram writes to the hard drive almost right away.

  • @mokin-rui717
    @mokin-rui717 8 лет назад

    This series has been so incredibly helpful to my family. We all wish to thank you for all the hard work you do.

  • @mikedench1110
    @mikedench1110 8 лет назад

    I get a lot of information and enjoyment from these short videos but Hank is the man whose presentations I enjoy the most because of his energetic delivery. I would have really enjoyed him as a student when I taught CDT he'd have kept me on my toes!

  • @lob19
    @lob19 9 лет назад +76

    You speak so quickly you should consider rap career :D

    • @mycorrvptmind919
      @mycorrvptmind919 9 лет назад +8

      So I wasn't the only one comparing him and Tech N9ne? Good...

    • @erics5059
      @erics5059 9 лет назад +8

      Actually, you just talk really slow

    • @nooneissmiling877
      @nooneissmiling877 6 лет назад

      Does he really talk that fast cuz I personally dont think soo

    • @det.halligan
      @det.halligan 6 лет назад +1

      I think he talks fast but not uncomfortably so; I talk at approximately the same speed assuming I have my thoughts in line (usually I think faster than I can write, act, or talk which can make me stumble, making me look stupid).

  • @PromethorYT
    @PromethorYT 10 лет назад +10

    havent slept all night, i really should get some rest now...

  • @rush2246
    @rush2246 8 лет назад +2

    I actually tried beating that record when I was 15, lasted 9 days without sleep and it's very accurate as to what he said. I experienced hallucinations and I kept thinking people were talking when they in fact weren't. Couldn't focus well and very blurry vision, I was told I kept swaying my body side to side when I thought I was sitting still.

  • @Matoaka01
    @Matoaka01 8 лет назад +12

    So is this the reason i come up with my best ideas at 3am when i cant sleep? The defragging part i mean.

  • @ApolloBeatz1
    @ApolloBeatz1 10 лет назад +12

    Strange that I'm watching this. It's 6:33 AM where I'm at and I didn't even sleep yet. Lol

  • @manwithtwowives
    @manwithtwowives 10 лет назад +44

    interesting. i have insomnia... longest i have gone without sleep is 4 days and 3 nights... horrible feeling. i started to hallucinate (i was at work at the time too). it was horrifying.
    i didnt know it caused immune system issues.. that might actually explain a lot.

    • @manwithtwowives
      @manwithtwowives 10 лет назад +1

      ***** depends on the situation... once when i was at work, i saw a person (even started to talk to them for a second). once when i was on the way home from work (as a passenger in a car) i saw a bull in a field. scary stuff, really, when you're not expecting it.

    • @MostlikeToast
      @MostlikeToast 10 лет назад

      KandaPanda
      Maybe you should ask take a taxi home

    • @manwithtwowives
      @manwithtwowives 10 лет назад +5

      MostlikeToast i wasnt driving and dont when im sleepy

    • @killa432546
      @killa432546 10 лет назад

      I know how you feel. I also suffer from insomnia and have gone a week without sleep on two different occasions, three to four days without maybe once or twice a year, and two days without on a weekly basis. Strangely my hallucinations are relatively tame, I see spots, hear birds, and sometimes begin talking animatedly to myself.

    • @Damnationization
      @Damnationization 10 лет назад

      KandaPanda Do you exercise? I go to the gym and lift weights. I sleep great and have never had an issue with sleep. If I don't get enough sleep I do get a head ache and am a dick.

  • @jojoh265
    @jojoh265 7 лет назад

    Fell asleep watching this 2 weeks ago. I saw it again and had to comment it.
    This video is 2 years old.

  • @24pickles24
    @24pickles24 8 лет назад +1

    It takes about 5-6 of these videos to get me sleepy, not that they're boring, I just find them soothing

  • @MrNutter
    @MrNutter 10 лет назад +24

    Did anyone else feel tired after watching this?

  • @CrazyDW00
    @CrazyDW00 10 лет назад +17

    Well that cancels my ideas for watching every episode of Doctor Who from start to finish which would take around about 15 days.

    • @alexblack4048
      @alexblack4048 10 лет назад

      OMG thank you!! Now i know im not the only one XD

    • @CrazyDW00
      @CrazyDW00 10 лет назад +1

      Hehe. I also thought I was the oly one.

    • @alexblack4048
      @alexblack4048 10 лет назад

      :)

    • @halomanofdoom
      @halomanofdoom 10 лет назад +2

      I'm pretty sure you wouldn't be watching Doctor Who anymore by then

    • @CrazyDW00
      @CrazyDW00 10 лет назад

      Casey O'Neil Actually I have watched every episode at least twice. That shows how much of a fan I am. I'm pretty sure that watching them all again for a third time in a shorter period of time wouldn't stop me from watching them again.

  • @FreeMan4096
    @FreeMan4096 5 лет назад +1

    what a fantastic channel. thanks for this quality content.

  • @abbaday0237
    @abbaday0237 8 лет назад

    Thanks for all the info! I'm on a paper about sleep and your sources are rich and interesting. Keep on the good work!

  • @YouSuck921
    @YouSuck921 8 лет назад +25

    Is this Hank from Crash Course?

    • @duwak3359
      @duwak3359 8 лет назад +8

      yes

    • @samseidel9917
      @samseidel9917 8 лет назад +7

      +YouSuck921 and from vlog brothers

    • @stxnw
      @stxnw 8 лет назад +4

      I actually thought they were two different people that look similar xD

    • @dylanhernandez2103
      @dylanhernandez2103 8 лет назад +1

      They are brothers.

    • @LTdrumma
      @LTdrumma 8 лет назад +3

      yeah, Hank and John Green are the vlog brothers and they produce many youtube channels (CC, scishow, etc.)

  • @gavers101
    @gavers101 10 лет назад +12

    That giraffe looked so fucking tired

  • @FloozieOne
    @FloozieOne 4 года назад +2

    I've always been a night owl, although watching these videos at 5 am is a bit of a stretch, and this is why I've always worked evenings or nights. However, there are times when you simply HAVE to get up early in the morning (say 10 am) and try to stumble through the morning. So many times I have forgotten the water or the coffee or to turn on the coffee machine that I now say "I can't do anything before I have coffee, not even make coffee". I seem to get by on 5 hours or so for one night and still make it through a day, but that evening I will often wake up face-planted on my desk while sitting at my computer. The body wins, free will loses.

  • @justinnorwood5477
    @justinnorwood5477 7 лет назад +2

    This video did a great job explaining sleep from a different perspective. There are a lot of aspects involved with sleeping than I would have ever assumed. Just one night of no sleep can throw your mind into goo the next day. I am currently working 40+ hours a week while being a full time student, so I don't get much sleep at all. I'm, exhausted from working all the time so by the time I study it's already late. On average I sleep probably 4-5 hours a night and don't feel stress, hallucinations, etc. It makes me wonder what day all of this stuff is going to add up. I know its not healthy to get less than 5 hours of sleep, but so far it hasn't affected my body in a negative way. Hopefully it stays like this!

  • @danielbekkelund2760
    @danielbekkelund2760 10 лет назад +6

    If i sleep 7, 8 hours, no way ill stand up on the next day, sleep 2, 4 hours, best feeling ever!!!

  • @supernenechi
    @supernenechi 9 лет назад +45

    NO!?!?! WHY WOULD IT BE THAT TEENAGERS DON'T GET ENOUGH SLEEP!?!?!? FOR FUCK SAKE... SCHOOL!! OMG... THAT F*CKING SCHOOL AGAIN... I HATE IT SOMETIMES!! CAN'T IT JUST START 2 HOURS LATER!?!?!?

    • @ThallanarRabidtooth
      @ThallanarRabidtooth 8 лет назад +1

      +Quenten Schoonderwoerd It's to prepare you for working as an adult. My mom wakes up at 3:30 AM and goes to work at 5 AM, and comes home at 4 PM. She has to take a nap for a few hours after she comes home from work to have enough energy to be awake until she gets tired again by about 10 PM. Waking up at 6 AM and coming home at around 2 PM is a good deal compared to what my mom does.

    • @EbrahimRoss123
      @EbrahimRoss123 8 лет назад +2

      I blame RUclips

    • @EbrahimRoss123
      @EbrahimRoss123 8 лет назад +8

      And I blame my dumbass for watching RUclips

    • @DontRobMe13
      @DontRobMe13 8 лет назад

      +Quenten Schoonderwoerd dude you hit the caps lock button

    • @Ranger1812
      @Ranger1812 8 лет назад +1

      +Thallanar Rabidtooth No. It really isn't. The education is severely messed up. It doesn't prepare for adulthood. What a ridiculous comment.

  • @griffincampbell6197
    @griffincampbell6197 6 лет назад

    I...I just can't stop watching these videos.

  • @leonard1871
    @leonard1871 9 лет назад

    I acquired a lot form this , and the important lesson i learned from this the most was to slow the heck down when addressing people socially.

  • @CuriousCreatures
    @CuriousCreatures 10 лет назад +4

    I'd be interested to learn about the causes of insomnia - why sometimes you can't sleep even though you *want* to sleep and feel really exhausted. I go through phases sometimes lasting up to a week where despite being so very, very tired, my brain refuses to 'switch off'', and usually I only manage to drop off an hour or two before I have to get up again.

    • @Haise-san
      @Haise-san Год назад

      If you can't shut it off, then put that brain on ambien, it helps a lot. Btw nice channel

  • @KabukeeJo
    @KabukeeJo 10 лет назад +7

    I remember a documentary about a man named Michael Corke, who could not sleep after developing a severe case of Insomnia at age 40. He eventually went into a Coma, & died 6 months later at a Hospital. So yes Science Fans. Not sleeping can indeed kill you.

    • @KabukeeJo
      @KabukeeJo 10 лет назад

      Aisha AlZarouni
      thanks!

  • @s3r3nity17
    @s3r3nity17 8 лет назад +1

    this is the best show i ever discovered. makes me remember how much i am a curious minded kid again. thanks!!

  • @andwilsaw
    @andwilsaw 8 лет назад

    I really needed this. I have had problems sleeping and this just made it a little easier

  • @david199508
    @david199508 10 лет назад +3

    That explains why I suddenly felt scared one night when I was taking a walk after being up for about 35-40 hours. I knew something was wrong but I felt like something was after me.

    • @ThallanarRabidtooth
      @ThallanarRabidtooth 10 лет назад

      Lol yeah... I went 28 hours without sleep just last night and I thought for a brief moment that the empty soda cans next to me were out to attack me.

  • @ThePCguy17
    @ThePCguy17 10 лет назад +55

    um...teens may need more, but they probably get less. just because they have to get up for school. So hey school! Stop being so early!

    • @chriscory2049
      @chriscory2049 10 лет назад +11

      No, I think it's because teens go to bed late. I mean, school is early, but teens could chose to go to bed at 10 or 11 instead of 1:30 am, but (at least for me) night time is the best time for alone time, so the instinct to stay up late to watch shows or read books is really hard to ignore.

    • @_0______00__________0_______0
      @_0______00__________0_______0 10 лет назад +9

      I think I've heard about studies done before where high schoolers grades go up about 10-15 percent across the board when they start school an hour later than usual. A lot of schools are starting later to get grades up, I know my own high school has kids going closer to 9 now rather than 8 when I was there. I usually spent first period sleeping anyway, so I'd say it's a smart move.

    • @ThePCguy17
      @ThePCguy17 10 лет назад +5

      Raylyn Smith this is exactly what I mean. I know I could go to bed early...but why should I give up the free time lateness offers?

    • @chriscory2049
      @chriscory2049 10 лет назад +2

      ThePCguy17 Eeeexactly!

    • @chriscory2049
      @chriscory2049 10 лет назад +3

      Ohhh, are some schools starting later? YAY!

  • @neilkadu
    @neilkadu 9 лет назад

    you may do speak very fast...... but i can understand each and every word of your video without any subtitle help...... that's a huge compliment to you bro...... good job.... all the best..... i like you.

  • @HalimahNiaM
    @HalimahNiaM 9 лет назад +1

    Excellent video. Thank you!

  • @cyriewilson3170
    @cyriewilson3170 10 лет назад +3

    Ironically the last video before I go to bed.

  • @HQ_Default
    @HQ_Default 10 лет назад +11

    0:34 (passes out)

  • @freyaguppy
    @freyaguppy 7 лет назад

    I'm doing a one page paper on this topic for school, great vid hank!

  • @johanngrant
    @johanngrant 8 лет назад

    very helpful great job to the people at scishow!

  • @redzeroo6068
    @redzeroo6068 10 лет назад +5

    This was interesting...
    I am now going to sleep

  • @MrBolyo1
    @MrBolyo1 9 лет назад +25

    Thumbs up if you're watching this 24 hours in without sleep.

    • @themasterofswag1971
      @themasterofswag1971 8 лет назад

      +Nightcore DirtyJokerz & DgHGerman I used to be able to go that long without sleep...
      When I was younger

    • @MizukiAkemi
      @MizukiAkemi 8 лет назад +1

      Over 48 hours

    • @aw3961
      @aw3961 8 лет назад

      +Nightcore DirtyJokerz & DgHGerman 27 hours

    • @nicalex2279
      @nicalex2279 8 лет назад

      +Nightcore DirtyJokerz & DgHGerman Please don't be proud of that...

    • @MizukiAkemi
      @MizukiAkemi 8 лет назад

      Manos Nah I'm good love ya too

  • @annjean4369
    @annjean4369 6 лет назад

    Excellent video! Thanks for sharing.

  • @judithdowsett9509
    @judithdowsett9509 7 лет назад +1

    We where very happy to see this video, my 7yr old son Tristan was telling me how his brain worked then we watched you and you said the same thing , he was amazed hat his guess was right . thank you for sharing your knowledge in a way kids can relate x

  • @West_Kagle
    @West_Kagle 10 лет назад +22

    So sleeping is like de-fragging the hard drive inside our skulls?

    • @West_Kagle
      @West_Kagle 10 лет назад +17

      Well, I did it again. I decided to comment on a video before I finished watching it, and found that the host says the exact same thing I just commented. I will never learn. :P

    • @alterperversersackkk
      @alterperversersackkk 10 лет назад

      West Kagle BLUT UND EISEN!!!!!!!!!!!!

    • @West_Kagle
      @West_Kagle 10 лет назад

      alterperversersackkk
      Is that you Chancellor Bismarck?

    • @alterperversersackkk
      @alterperversersackkk 10 лет назад

      West Kagle JAWOHL!!!!!!

    • @West_Kagle
      @West_Kagle 10 лет назад

      alterperversersackkk
      LOL ;P

  • @ookaookaooka
    @ookaookaooka 10 лет назад +14

    Dangit, I'm trying to study!

    • @mikkicarr5717
      @mikkicarr5717 10 лет назад +3

      I know that feel. Science videos on RUclips are way too interesting. I really need to do my history project.

    • @TAPriceCTR
      @TAPriceCTR 10 лет назад

      are you some kind of masochist? my record is 80 hours and I intend to never do that again (but I would do it for 5 grand)

  • @johnharris7353
    @johnharris7353 6 лет назад

    Really good...Hank's awesome.

  • @dara2m4
    @dara2m4 7 лет назад

    I love the way Hank talks :)

  • @spineshivers
    @spineshivers 8 лет назад +4

    I wonder how much did that kid sleep after those 11 days. I remember that I couldn't sleep for about two days (48 hrs) cause of my job and when I finally got home I was actually drowsy an sick to my stomach. Turned off my phone and slept for about 15 hours. Fell asleep at about 9 PM and woke at about 12 or 1 PM the next day. I think I remember getting up to pee, but to this day I don;t remember if I was dreaming or it really happened.

    • @memencream4315
      @memencream4315 8 лет назад

      I'm not sure if this is true but my parents told me that I went to the pee in the bathtub with my eyes open and I know I was not awake ps I sleep with my eyes open sometimes

  • @OilSpill10
    @OilSpill10 9 лет назад +30

    I don't know about you all but his fast talking wore me out. I need a nap.

  • @olaf9062
    @olaf9062 8 лет назад

    interesting. thanks found your channel reccently, good stuff.

  • @tantroe-biff696
    @tantroe-biff696 7 лет назад

    Amazing video. How do you know so much about sleep? My hat gets off for you good Sir

  • @7249xxl
    @7249xxl 10 лет назад +21

    I sleep only 4 hours a day. I dont feel sleepy during the day or at night. The longer i sleep the more exaushted i feel the next day. Whats wrong with me xD

    • @LittleCazzy
      @LittleCazzy 10 лет назад +6

      I have a similar problem only I always feel very sleepy during the day but when I is dark I feel very awake

    • @NYbeastx
      @NYbeastx 10 лет назад +6

      I believe another RUclipsr answered that type of question. Sleep is basically a cycle and if you are forced awake amidst the "Deep" sleep stage, you will feel much more tired.

    • @atyfanable
      @atyfanable 10 лет назад +6

      CazzyLove Vampire -.-

    • @arazmate
      @arazmate 10 лет назад +12

      You need to go camping for a week with no technology so the sun can reset your natural body clock!

    • @rmyd027
      @rmyd027 10 лет назад

      Oversleep definitely can cause you to feel tired, this is why its not suggested to sleep more than the recommended 8 hours... but obviously there is some area of leeway that you can do (+/- an hour id say). But from what ive understood the most important part of sleeping is REM sleep which is also referred to as "Deep sleep." This is when the aforementioned neurons are being strengthened and/or weakened depending on importance (Mentioned in video). Couldn't say why sleeping more than 8 hours could cause drowsiness but it certainly does, I just have never gone out of my way to look it up as it seems like a universal problem for people who have extended sleep (myself included).

  • @KierstynElyse
    @KierstynElyse 10 лет назад +12

    hanks intelligence attracts me

    • @StopTheImpossible
      @StopTheImpossible 10 лет назад +9

      Now i feel bad for him...

    • @alexshaban8543
      @alexshaban8543 10 лет назад

      Beholden Honda Hahaha!

    • @StopTheImpossible
      @StopTheImpossible 10 лет назад +4

      ***** You, you my friend get humor.

    • @StopTheImpossible
      @StopTheImpossible 10 лет назад

      *****
      You have an elegant way with words. Today's modern technology has corrupted most of the humans intelligence. Nice to see 'one of us'.

    • @StopTheImpossible
      @StopTheImpossible 10 лет назад

      ***** The repetition of multiple words somewhat boggles my mind.

  • @mymyrrah
    @mymyrrah 8 лет назад

    I sure love watching sci videos at 12:00pm :)

  • @matthewreynolds8068
    @matthewreynolds8068 4 года назад

    Scishow was one of the determining factors in me becoming a science oriented person and I just can't show enough appreciation

    • @matthewreynolds8068
      @matthewreynolds8068 4 года назад

      I love the intro so much, and Hanks mannerisms never disappointed. Especially the most dangerous chemicals on earth vid ✊😂

  • @julissaalmodovar1012
    @julissaalmodovar1012 9 лет назад +3

    Wow n last night i only had 2 hours to sleep till 6 n i was dizzy non focus today. Well now i know

  • @Cerbero3333333
    @Cerbero3333333 10 лет назад +8

    Fine. Ill go sleep

  • @linrm7
    @linrm7 7 лет назад

    I thoroughly enjoyed this

  • @AndiTheValkyrie
    @AndiTheValkyrie 8 лет назад +1

    My longest going without sleep was 72 hours (lan party, need I say more) but I once went with an average of 2-4 hrs of sleep for almost two month (some swollen thing next to my ear hurt so bad I couldn't sleep) and I had so much fun because it was amazing observing how my own behaviour and perception of the world around me changed quite radically.

  • @jacklawrence7331
    @jacklawrence7331 10 лет назад +14

    It's currently 4am so I clearly don't understand this concept of sleep.

  • @jae102900
    @jae102900 10 лет назад +8

    We sleep because Santa comes down our roof without us noticing.

  • @ftwftw4304
    @ftwftw4304 7 лет назад

    the best channel for me

  • @hunteur
    @hunteur 6 лет назад

    Oh a night owl, love you even more Hank!

  • @amrutpurohit9830
    @amrutpurohit9830 10 лет назад +4

    true, teenagers do need at least 8Hrs of sleep, this is possible when the amount of homework is reduced -_- which seems improbable right now

  • @theimprobableone8635
    @theimprobableone8635 7 лет назад +62

    We sleep to forget how pointless life is.

  • @ntembenkausu
    @ntembenkausu 8 лет назад

    Great show

  • @xmaswitguns
    @xmaswitguns 8 лет назад +1

    I remember my Grandpa telling me about the time he fell asleep during a WWII battle in a French town. He had been up for three days and just involuntarily powered off. He awoke to find gaping holes in buildings and a smoldering enemy tank in the middle of town. I'm just glad he did wake up...

    • @stuvs830
      @stuvs830 8 лет назад

      Holy crap. Though not being a part of the fight right then may have saved his life