How does your body know what time it is? - Marco A. Sotomayor

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  • Опубліковано 7 гру 2016
  • View full lesson: ed.ted.com/lessons/how-does-yo...
    Being able to sense time helps us do everything from waking and sleeping to knowing precisely when to catch a ball that’s hurtling towards us. And we owe all these abilities to an interconnected system of timekeepers in our brains. But how do they work? Marco A. Sotomayor details how human bodies naturally tell time.
    Lesson by Marco A. Sotomayor, animation by TOGETHER.

КОМЕНТАРІ • 506

  • @MAdhvaryu
    @MAdhvaryu 7 років тому +2459

    My body knew that it was time for a ted ed video so I'm here early

    • @healthystrongmuslim
      @healthystrongmuslim 7 років тому +55

      Manan Adhvaryu actually first, congrats. extra points for not commenting completely irrelevantly

    • @MAdhvaryu
      @MAdhvaryu 7 років тому +14

      :)

    • @Stuck313
      @Stuck313 7 років тому +18

      You can't be "early" for a video. That would also require that there is something as "being on time" for the video and "being to late" for the video...

    • @micahhenley589
      @micahhenley589 7 років тому +6

      Hello.
      DNA contains information on how to build an organism.Information only comes from an intelligence.
      DNA is the book of life.A book requires an author.

    • @pentagon-crackheadangels9655
      @pentagon-crackheadangels9655 7 років тому

      Because
      You subscribed and set the remider om

  • @larzsalas1028
    @larzsalas1028 7 років тому +732

    But how come when I take a long sleep in the afternoon I don't know what decade I'm in when I wake up.

    • @sangeetamallick997
      @sangeetamallick997 5 років тому +12

      Yh....right...i just woke up from my evening sleep 😅

    • @Eric-qe6xz
      @Eric-qe6xz 4 роки тому +34

      Lmao when I don't sleep enough, my brain resets the clock to a random invalid date, or a date far into the past or future. This morning, it was set to 11 November 2030 lmao

    • @DC-zh5qs
      @DC-zh5qs 4 роки тому +12

      One day 1 slept at 4:00 PM and woke up at 8:30 PM and thought it's 6:00 PM

    • @RowanTo40
      @RowanTo40 4 роки тому +1

      Its 2020 know

    • @RaghavSharma-dm9fl
      @RaghavSharma-dm9fl 4 роки тому

      😂😂😂

  • @eatcarpet
    @eatcarpet 7 років тому +787

    I don't know how he didn't get bored to death.

    • @ChrisPPotatoIDC
      @ChrisPPotatoIDC 7 років тому +106

      He was old, old people don't get bored

    • @DREMajed
      @DREMajed 7 років тому +4

      A Cat but, why?

    • @quarkyquasar893
      @quarkyquasar893 7 років тому +33

      Because they have enough to think about.

    • @ladyingrey
      @ladyingrey 7 років тому +6

      eatcarpet the things people do during experiments

    • @flowersintheKitchen
      @flowersintheKitchen 7 років тому +1

      +A Cat Lollll hahaha

  • @geekfreak2000
    @geekfreak2000 3 роки тому +69

    As a person with ADHD, I can confirm I experience time differently than my peers and coworkers. I'm notorious for misjudging how long or short a task will take, and we have timers to help keep not only me on track, but to benefit all of us when we get into flow or distracted. Time is standardized, but it's experience is not standard.

  • @j.rodolfoprz7713
    @j.rodolfoprz7713 7 років тому +289

    Well, it's 2 a.m. and my body doesn't understand I need to go to sleep right now in order to function tomorrow..

  • @simranrehal9809
    @simranrehal9809 7 років тому +62

    This narrator's voice is so nice, could listen to him all day :)

  • @toph72548
    @toph72548 6 років тому +42

    What I find interesting is that most mornings, before I take a shower I start a timer for 13min20secs to tell me when to get out. Despite not having the same routine when I'm actually in the shower (taking more time washing my hair for example or simply enjoying the hot water) most of the time, I manage to leave the shower just a couple of seconds before the timer runs out. I get that intuition that it's time to get out and funnily enough, it is. That made me question the situation so I tried with different times like 15min or even 10 min and almost every time I managed to keep it really close to the set timer. I find it really fascinating.

  • @HQ_Default
    @HQ_Default 7 років тому +103

    I guess that explains why I ALWAYS wake up at 9 o'clock.

    • @mrniceguy4277
      @mrniceguy4277 4 роки тому +17

      People always complain about waking up early on the weekend, but I think it is nice, Because that way you can enjoy many hours of free time :)

    • @Rob46373
      @Rob46373 4 роки тому

      @@mrniceguy4277 tell that to me I WAKE UP AT 4-4:45

    • @davidwoek3041
      @davidwoek3041 4 роки тому

      Daniele m Ouch

    • @brianjodwischat8759
      @brianjodwischat8759 4 роки тому

      @HQDefault I wake up at 11 am lmao

    • @Pelipear
      @Pelipear 3 роки тому

      I wake up late on the weekends lol

  • @bhaktaskitchen3510
    @bhaktaskitchen3510 5 років тому +13

    The reason why I like TED Ed is that it has the answers to almost all of my silly questions

  • @miriamlogan3733
    @miriamlogan3733 5 років тому +18

    "CLK." Scientists are *so* creative. Reminds me of the time engineers named a programming language "A," and then the second version "B," and the final version "C."

  • @Brightrich26
    @Brightrich26 7 років тому +39

    This is why working from 9 P.m. to 6 A.m. fucks you up.

    • @Madmatt18
      @Madmatt18 7 років тому +2

      then in 8 hours work 2pm to 10pm then the next 8 hours work 6am to 2am

    • @charlielight8544
      @charlielight8544 7 років тому +4

      I've heard that what Matty Matt suggested is even worse than night shift by itself (there is no consistent 24-hour routine present, compared to a scenario in which there is one but it doesn't match well with the schedule that the body wants).

    • @vDorgengoa
      @vDorgengoa 7 років тому

      +Matty Matt You work in a factory.

    • @Madmatt18
      @Madmatt18 7 років тому

      Not so much a factory as a cannery

    • @PrincessNinja007
      @PrincessNinja007 7 років тому +3

      Brandon Miller This is why working from 10 am to midnight one week, then 5 am to 10 am, then 7 am to 8 pm will fuck with you too

  • @DJ1000ization
    @DJ1000ization 7 років тому +12

    We need more people like Siffre willing to put themselves through this stuff.

  • @K.S.Khunkhao
    @K.S.Khunkhao 7 років тому +34

    Ted-ed vids always have epic - timeless - ending.

  • @timetraveller500
    @timetraveller500 7 років тому +40

    What an amazing creation our bodies are!

  • @RedwoodGeorge
    @RedwoodGeorge 7 років тому +4

    I used to work in radio and all of my breaks were programmed around (multiples of) 30 second advertisements. After a few months I would instinctively know how long 30 seconds was - down to about a second of accuracy. I could be totally engrossed in a conversation or surfing the web during an ad break when something in the back of my brain would say "time's up!" - and it was. That was a number of years ago and the 30 second timer has faded away but it was a fascinating phenomenon when it was around.

  • @user-ci2lg1lw5b
    @user-ci2lg1lw5b 3 роки тому +5

    우리몸이 시간을 어떻게 인지하는지, 쉽게 말해서 시계가 없어서 정확한 시간을 모르지만 우리가 먹고 자는 우리의 생활 사이클이 어떻게 언제나 비슷한지에 대하여 배워보는 시간이 되었습니다. 좋은 시간이 되었습니다. 감사합니다.

  • @livintolearn7053
    @livintolearn7053 6 років тому +6

    These lessons can really change anyone's life!!

  • @schmitty918
    @schmitty918 7 років тому +68

    This video made me sleepy.

  • @Ka-ws5qj
    @Ka-ws5qj 4 роки тому +17

    Honestly, my online classes are the only way I know what day and time it is. Otherwise I would sleep all day...

  • @retak4110
    @retak4110 7 років тому +35

    I do not have this internal clock - I do not know when to eat or when to sleep - I gotta check the clock. And, I better do not mention catching the ball...

    • @Someone-km3mx
      @Someone-km3mx 3 роки тому

      ME TOO! I do not know what time it is without looking at the clock and I CANNOT catch a ball. Thank goodness I still have time to try to fix my internal clock before I have to go move out

  • @9067285164
    @9067285164 3 роки тому +3

    I am addicted to these videos.. These days I can’t sleep without watching one of TED...

  • @mountainbreeze4176
    @mountainbreeze4176 7 років тому +5

    I have a default alarm clock infused in my brain, so if I want to wake up super early for early work, I wake up naturally on the right time... how fabulous a creature I am.

  • @ddanenel
    @ddanenel 7 років тому +90

    'Only time will tell.'
    Wow

    • @francescaderiu8871
      @francescaderiu8871 6 років тому

      [WUT] Dankiel gli made my day😂😂

    • @joykok4444
      @joykok4444 6 років тому

      Omg read read this at the exact time it said only time will tell 😂

  • @Rippertear
    @Rippertear 7 років тому +61

    "maybe time's just a construct of human perception
    an illusion created by- MYAAAH MYAAAH MYAAAH MYAAAH MYAAAH MYAAAH MYAAAH MYAAAH MYAAAH MYAAAH MYAAAH MYAAAH MYAAAH MYAAAAAAAAAHHHHHHH"

    • @roiyunoscheng1706
      @roiyunoscheng1706 7 років тому +2

      Rippertear Don't hug me I'm scared.

    • @yichern4351
      @yichern4351 7 років тому +2

      Rippertear After watching this video, that statement has never been more correct

    • @PacoCotero1221
      @PacoCotero1221 7 років тому +2

      Time is a matter of space.

  • @3mmar522
    @3mmar522 7 років тому +36

    I believe each brain has its own clock, so we are different! but all our clocks' timing are very close ( night is sleeping and day is working ).
    The problem is, today we have light everywhere and waves on our brains which change our timing from ppl back 1000years

  • @TheNoerdy
    @TheNoerdy 7 років тому +194

    How did he record when he ate and slept if he had no clock.

    • @soullessleftover8427
      @soullessleftover8427 7 років тому +2

      TheNoerdy1221 Night camera? The one that records in dark...

    • @Kelsphere12
      @Kelsphere12 7 років тому +138

      according to wikipedia, he called his research assistants whenever he woke up/slept and ate...so they were the ones recording this information

    • @normbeats6618
      @normbeats6618 7 років тому +17

      TheNoerdy1221 I'm using Google Voice to type this comment

    • @jaypee9575
      @jaypee9575 7 років тому +35

      He had electrodes attached to himself that monitored when he slept and ate.. I can only assume it recorded those activities with date and time information.

    • @cannae920
      @cannae920 6 років тому +3

      Soulless leftover!
      Did those exist in 1962?

  • @boazsadeh2401
    @boazsadeh2401 4 роки тому +3

    The first cave experiment demonstrating the circadian rhythm had actually been conducted by sleep researcher Nethaniel Kleitman back in 1938. He stayed in cave Mammoth, together with one colleague, for 32 days. Kleitman is largely considered the first sleep researcher.

  • @chesterchow1
    @chesterchow1 7 років тому +53

    I work nights. Maybe this is why I hate existence

    • @serajalhorany4914
      @serajalhorany4914 7 років тому +1

      if your a human not a working machine for the society

    • @ikkee5936
      @ikkee5936 7 років тому +5

      I hope you'll find a job at normal clock hours, good luck!

    • @craybaby101
      @craybaby101 6 років тому

      Phil Latio same

  • @99xara99
    @99xara99 7 років тому +134

    "Zeitgebers" 😂 I wonder why such simple words are sometimes just not translated, but the plural is built with the English grammar rules.

    • @tiavor
      @tiavor 7 років тому +8

      the irony is that Zeitgeber is singular and plural at the same time. the determiner determins (haha) if it is singular or plural

    • @99xara99
      @99xara99 7 років тому +3

      *****
      Yes. I was more wondering why they didn't simply translate it :)

    • @pb_and_jj
      @pb_and_jj 7 років тому +1

      +DasPikachu me too xD

    • @Schattenmaler
      @Schattenmaler 7 років тому +5

      Don't forget about these weird abominations like the Eigenvalue.

    • @atrudokht
      @atrudokht 6 років тому +3

      Also the pronunciation is incorrect. Should be in Deutsch way!

  • @LughSummerson
    @LughSummerson 7 років тому +9

    4:36 At last, the face reveal of the voice of TED-Ed.

  • @erykhim
    @erykhim 7 років тому +7

    I hate myself for watching this kind of video late at night.

  • @amphicyon4359
    @amphicyon4359 7 років тому +21

    Why does watching tv or youtube right before bed makes me fall asleep faster?

    • @covey3416
      @covey3416 7 років тому +2

      Probably because you're straining your eyes, making it easier to fall asleep. Kinda like if you blink a bunch of times when in bed, it will help you fall asleep faster.

    • @amphicyon4359
      @amphicyon4359 7 років тому +3

      Covey Thanks, maybe I'll try that when I can't fall asleep

  • @zeethree
    @zeethree 7 років тому +85

    Either I have no circadian rhythm or it's extremely broken. None of this stuff happens for me.

  • @gaurav_gandhi
    @gaurav_gandhi 7 років тому +1

    "Only time will tell."
    +1 for ending .
    Thanks for good video.

  • @SleepyPanda-co3iy
    @SleepyPanda-co3iy 2 роки тому +2

    Every time I heat some food in the microwave, I always get the signal that food is ready in about 10 sec before the food is actually ready to give me time to go to the microwave. This is so cool

  • @LearningDevgarg
    @LearningDevgarg 10 місяців тому

    Thank you ted for making these videos! Love from India

  • @vladimirmarkovic22
    @vladimirmarkovic22 7 років тому

    This is so beautiful and amusing!

  • @siliasadmi7835
    @siliasadmi7835 5 років тому

    perfect video ever thanks we need more like this

  • @vallikencorvuskane4556
    @vallikencorvuskane4556 7 років тому

    The passing of moments are natural! The concept and (abuse) of systemic time is a decree, human management and expectation. Love to ALL

  • @kme9549
    @kme9549 7 років тому +1

    Mind blowing

  • @shavigautam9398
    @shavigautam9398 2 роки тому

    Much sought video for days I was thinking about this type of content I landed in today's search.
    Thanks Ted

  • @sherylabraham8134
    @sherylabraham8134 4 роки тому +1

    I'm watching this at 3:17am, nice

  • @DanyalShabirr
    @DanyalShabirr 2 роки тому

    I am addicted to your voice😁

  • @covey3416
    @covey3416 7 років тому +9

    "Only time will tell." You just had to fucking say it, huh?!

  • @Estarlina
    @Estarlina 7 років тому

    Just one word, *Awesome*

  • @captin2263
    @captin2263 7 років тому

    my science teacher loves your videos.

  • @Germanywithtripti101
    @Germanywithtripti101 4 роки тому +2

    He didnt talk about Pineal gland which secreats Malatonin and pineal gland is responsible to keep track for time, which is another dimension of space apart from 3D-Space. Abilities of Pineal gland is more then, understood or shown, weather to connect us to higher dimensions etc.

  • @b1tmaster01
    @b1tmaster01 7 років тому +1

    Awesome Video!!!!

  • @GraceJones1
    @GraceJones1 7 років тому

    thank you for this video!

  • @jasjas-rm9kc
    @jasjas-rm9kc 7 років тому +1

    Once upon a time, when I didn't have a watch, I could still tell you what time it was, with an accuracy of a minute or so. Even waking up in the middle of the night, I knew what time it was. How I did that, I don't know. Presently, I have a watch and a phone, so I don't have to rely on my brain any more.

  • @geomancer6371
    @geomancer6371 2 роки тому

    5:40 is my wake up time. I could set my watch to it.

  • @kamillamn
    @kamillamn 2 роки тому

    wonderful!!!

  • @user-ho6um6kn2s
    @user-ho6um6kn2s 4 роки тому +3

    I really enjoyed it and i have a question: What about blind people? How does it work on them?

    • @rayanrahmani9838
      @rayanrahmani9838 4 роки тому +2

      They can potentially develop a disorder called “non-24 hour sleep-wake disorder.” If they do, then they need to keep a fairly strict schedule about the things that they can control (e.g., eating time), use light therapy (as most blind people still have some light perception), and take melatonin and/or a prescription drug like tasimelteon

  • @jorgebenjamim2873
    @jorgebenjamim2873 5 років тому

    Great Video

  • @MK-wf9ul
    @MK-wf9ul 7 років тому

    Thanks for the information

  • @SauceStache
    @SauceStache 7 років тому

    Im a huge fan of chronosaucalogy... how much sauce you need at any given interval! GO SAUCE!

  • @user-fh8um7ye5v
    @user-fh8um7ye5v 6 років тому +1

    재밌네요! 항상 잘보고갑니다🙂👍👍💘

  • @pmbluemoon
    @pmbluemoon 7 років тому

    THIS IS AWESOME DATA!!!!

  • @gatochoph
    @gatochoph 7 років тому +1

    guys i really like this channel and i will be pleased if you put bibliographic references about your investigation (just like a scientific paper does) . it will help a lot of people to investigate and keep learning :)

  • @andresramirezsanchez5158
    @andresramirezsanchez5158 7 років тому

    nice effort!!!

  • @katiepease5489
    @katiepease5489 6 років тому

    your the best

  • @adameggers3798
    @adameggers3798 6 років тому +7

    This makes sense, thanks for posting it! It also leaves me with a question: do the autonomous processes of the body differentiate between true sunlight and, say, a night light in your bedroom, when determining whether to shut off melatonin? In other words, should you never sleep with a night light on?

    • @rayanrahmani9838
      @rayanrahmani9838 4 роки тому +5

      Yes, you shouldn’t sleep with a night light. If you want one, it should be red in color (as this has the least effect on the circadian rhythm).

  • @TheFoxMcfat
    @TheFoxMcfat 7 років тому +15

    on the weekens, i wake up at EXACTLY 10AM, no matter how soon or late i went to bed

  • @karens.r.2399
    @karens.r.2399 7 років тому

    Omg I was just asking myself this today 😱

  • @overthinkingruiner864
    @overthinkingruiner864 7 років тому

    The last question bears answer in itself already.

  • @gabrielvarela5
    @gabrielvarela5 7 років тому

    This is such a good channel

  • @christophercaptain
    @christophercaptain 7 років тому

    awrsome vedio

  • @skyesnowflakes
    @skyesnowflakes 7 років тому +9

    my body never knows what time it is to go to bed

  • @Skulltroxx
    @Skulltroxx 7 років тому +18

    lol, I am procrastinating at 11 at night... On UA-cam

  • @nchlsky
    @nchlsky 7 років тому +2

    So that is why even I sleep at 3am, I still wake at 7am due to the morning light.

  • @gofraids
    @gofraids 4 роки тому

    I always go to get tea at 10:30, or around that time every night. Around that time I always get a craving for a cup of tea. I do this so often my family thinks I have an alarm set.

  • @lakhanpant239
    @lakhanpant239 Рік тому

    Sir ko Salute

  • @shilohschwartz8671
    @shilohschwartz8671 6 років тому

    Cierto.

  • @rohitjainmonu
    @rohitjainmonu 2 роки тому

    I guess Ted-Ed forgot to mention how Siffre kept track of when he slept and ate. I remember reading somewhere that he used a long telephone line to tell his assistant every time he woke up, ate and went to sleep.

  • @josephstalin8423
    @josephstalin8423 7 років тому

    I am watching this video 5:30 AM. I should be sleeping now but binge watching ted ed videos instead.

  • @ikechiude
    @ikechiude 3 роки тому +1

    I always wake up at the exact time I plan to wake up. Random times. How does that work?

  • @martinjacquemyns8492
    @martinjacquemyns8492 7 років тому +1

    I always wake up at roughly the same time (6:30 am) during te week and 10am during the weekend and I don't need a clock for that. I think this has to do with it

  • @dtrez09
    @dtrez09 7 років тому +4

    so is it possible for your brain to just not get some of these concepts? when ive been sick and not working or in school for long periods of time i would eat and sleep when i felt like it, and fell completely out of sync with day/night cycle. theres been lenty of times ive woken up in the dark and dont even know if its late or early.

    • @jaypee9575
      @jaypee9575 7 років тому

      Definitely possible. That is likely what even happened to the guy in the video. They glossed over the part where he "slept at regular intervals" to make it sound more impressive, but he almost certainly did not sleep based on a 24 hour day exactly and likely shifted away in one direction or another while still maintaining regular intervals based upon that.

  • @iantorres6845
    @iantorres6845 7 років тому

    Anticipate tube floor spending including raise second.

  • @juliaeve
    @juliaeve 7 років тому

    What about when you have to work overnight? Can you do a video on shift/sleep disorders?

  • @MCAngelShow
    @MCAngelShow 3 роки тому +1

    What if someone does a similar test but in a dark liveable box that travels around the world in different time zones via flying. Food will be catered somehow, sleep and wake time is monitored and the test will last 10 days. The test subject also does not know where it is landing therefore it does not know what time zone it is...
    It’s a 1am curiosity

  • @JoiyGaming
    @JoiyGaming 7 років тому

    one time i remember waking up after a nap and i didnt remember anything. it was 9 at night but i didnt know because i didnt have my phone, at that point i was really confused because it was dark outside and i just woke up so i thought i overslept till 4 or 5.

  • @user-xs3sj7mg5g
    @user-xs3sj7mg5g 7 років тому

    Riddles please!!

  • @kristijanmajstoric
    @kristijanmajstoric 7 років тому +1

    whats interesting to me is how i wake up 5 minutes before my alarm goes off, and i dont have a regular sleeping waking time

  • @kellynhajime6568
    @kellynhajime6568 7 років тому +11

    "Could each of us be experiencing time differently?" Yes we definitely are. It's called relativity.

    • @asterixgallier8102
      @asterixgallier8102 3 роки тому +1

      the effects of relativity can be ignored at human scale

  • @LukaSauperl
    @LukaSauperl 5 років тому

    Ha ha ha, only time will tell, you got that right, that you do!

  • @bakerygoblin6895
    @bakerygoblin6895 7 років тому

    Why is this on the trending page with only 51k views!?

  • @braleepichaiya5973
    @braleepichaiya5973 6 років тому

    would love to watch how messed up body clock system can affect us.

  • @ReaverSoul
    @ReaverSoul 7 років тому

    me too

  • @gradenofvirture5278
    @gradenofvirture5278 4 роки тому

    Yahweh made us amazing bodies!

  • @theok5642
    @theok5642 7 років тому +25

    TIME IS A CONSTRUCT CREATED BY THE CHIN-

    • @jaypee9575
      @jaypee9575 7 років тому +11

      That is why we wear watches on our wrists, so our chins can always check the time

    • @hazelm6663
      @hazelm6663 6 років тому +1

      ese

  • @lemon-wf7dg
    @lemon-wf7dg 7 років тому

    the ending tho😎😎😎😁

  • @rohanmajji6474
    @rohanmajji6474 7 років тому

    Top10

    • @rohanmajji6474
      @rohanmajji6474 7 років тому

      Mysterious One Hopefully not..😂😂

  • @dead_again9839
    @dead_again9839 7 років тому

    TedEd: ideas worth silencing

  • @timwiliusa6564
    @timwiliusa6564 7 років тому +2

    I'm watching this video in bet at 03.16 in the morning, oh the irony.

  • @xozeintk8093
    @xozeintk8093 7 років тому

    🤗🤗🤗🤗

  • @Saranaprasadam
    @Saranaprasadam 5 років тому

    press like when you set your oven timer and leave the kitchen only to beep at correct moment when you come back

  • @m.habibie5738
    @m.habibie5738 3 роки тому

    Aaaaaaa yeah 👍

  • @takiyashir8712
    @takiyashir8712 4 роки тому

    cool