How does your body know you're full? - Hilary Coller

  • Published on Nov 13, 2017
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    Hunger claws at your belly. It tugs at your intestines, which begin to writhe, aching to be fed. Being hungry generates a powerful and often unpleasant physical sensation that’s almost impossible to ignore. After you’ve reacted by gorging on your morning pancakes, you start to experience an opposing force: fullness. But how does your body actually know when you’re full? Hilary Coller explains.
    Lesson by Hilary Coller, directed by Sashko Danylenko.
    Thank you so much to our patrons for your support! Without you this video would not be possible.
    Noa Shore, Taylor Hunter, Kyle Nguyen, Bijan Bayat Mokhtari, Elias Wewel, Henry Li, Ayaan Heban, Michael Aquilina, Yansong Li, MJ Tan Mingjie, Fabio Peters, Silas Schwarz, Cristóbal Medina Moenne, Tushar Sharma, Mohammad Khory, Goh Xiang Ting Diana, Umar Farooq, Kevin Wong, Activated Classroom Teaching, Constantin Salagor, Monica Grace Ward, Dawn Jordan, Yanira Santamaria, Prasanth Mathialagan, Savannah Scheelings.
  • Runtime: 4:34
  • TED  TED-Ed  TED Education  TED Ed  Hilary Coller  Sashko Danylenko  hunger  fullness  appetite  food  stomach  digestion  vagus nerve  hypothalamus  hormones  endocrine cells  digestive system  intestine  ghrelin  insulin  leptin  water  fiber  protein  

Comments: 655

  • TED-Ed
    TED-Ed  6 days ago +180

    Thank you so much to everyone who has supported our nonprofit mission on Patreon! You make this work possible. Want to learn more about how you can get involved? Check out our Patreon page:

    • jchustle22
      jchustle22 Hour ago

      Hi Ted-Ed. What software do you use to create these animated videos?

    • The Time In Between
      The Time In Between 4 days ago

      TED-Ed Check out our channel guys!! We are doing a holiday GIVEAWAY!!

    • Eye of Ra Bastet
      Eye of Ra Bastet 4 days ago

      subscribed :)

      HECTOR ARTURO 5 days ago

      niklapse what video?

    • niklapse
      niklapse 5 days ago +1

      *Going to be SUBBING to every person who likes this comment and subs to me L&C on my recent vid when done!!!!!*

  • jchustle22
    jchustle22 Hour ago

    Does anyone know what software they are using to create these animated educational videos?

  • jiashaina
    jiashaina 9 hours ago

    The Las Vegas nerve tho😂🤣😂..........

  • Tony Mathew
    Tony Mathew 10 hours ago

    I felt that it was not just quantity, but also quality of food which contributed to fullness... but I didn't think of hormones. Thanks!

  • Kristen N
    Kristen N Day ago

    They say that if you exercise a lot for eg ab exercises, your metabolism increases, what then?

  • Sophia Uehling
    Sophia Uehling Day ago

    I never feel full.

  • Logan Hall
    Logan Hall Day ago

    graduate move disaster helpful complex convinced error problem massive doll.

  • MinecraftGuy8567

    i was eating some mini wheats while watching this video.

  • MinecraftGuy8567


  • Giang Nguyen Châu

    Thank you TED-ED for giving me an useful lesson! Pls reply

  • Vadim Pro
    Vadim Pro Day ago

    Now I'm hungry :D

  • Team G.C.F.
    Team G.C.F. Day ago

    I was starving when I watched this

  • roody crles
    roody crles 2 days ago

    It doesn't ;). #teenagemetabolism

  • The one and only pug MASTER

    I love how adorably derpy the animation is XD

  • Gbenga Adebayo
    Gbenga Adebayo 2 days ago

    The Ghrelin in my body is like some hormone on a hormone....I can never fast and then, i don't really eat that much! Hunger for me is like...You've got to go now!

  • Melati Sasabila
    Melati Sasabila 2 days ago

    The animation is soooo cuuteee 😆😆

  • Abhishek Dalvi
    Abhishek Dalvi 2 days ago +1

    Good Animation

  • pushparaj 666
    pushparaj 666 2 days ago

    Really an amazing illustration...all the videos are in their best and easy to understand and it's Really really great in the animation videws....hats off to the innovative people who did those animations .I didn't used to comment on any videos but for you people i can't able to be not commented...really awesome works u r doing....

  • The giraffe that is on a tree

    Who else felt hungry just after watching this video

  • Rohit Saini
    Rohit Saini 2 days ago

    i wanna learn to animate like you

  • Venom
    Venom 2 days ago +1

    2:24-2:30 omg

  • Abril Hernández
    Abril Hernández 2 days ago

    Watching while I'm hungry

  • Jonah Belding
    Jonah Belding 2 days ago +1

    Ted Ed you are the best Chanel on YouTube

  • Abimael Royer
    Abimael Royer 3 days ago

    Watches this while craving for food

  • Beyond Psychology
    Beyond Psychology 3 days ago

    Now I will never buy a Samsung product again... Every time I am forced to watch an ad is another boycott.

  • Jacob Clark
    Jacob Clark 3 days ago

    I know I'm full when I start to gag.
    I don't even eat a lot, I just start to gag if I try to eat past being full.

  • Rain
    Rain 3 days ago

    ITS MY B-DAY can I please get 8 likes or more

  • Pumpkin Games
    Pumpkin Games 3 days ago

    I thought Hillary Clinton made this ...

  • Zarina A113
    Zarina A113 3 days ago +1

    Your animation makes my body look so cute! I feel so safe and protected with an army of smiley face organs and hormones inside me! Unlike other videos that neglect to show the smiles and double down on the textures. I always feel iccy afterwards.

  • andreea
    andreea 3 days ago

    I learn more from this channel than I do from school

  • sarabjeet Sodhi
    sarabjeet Sodhi 3 days ago +1

    science wars best

  • Matthew Stone
    Matthew Stone 3 days ago

    I'm eating a croissant and milk right now Edit: LOL, A CROISSANT IS IN THE VIDEO!!!!! XDDDD

  • Jeremie Salulog
    Jeremie Salulog 3 days ago

    Very informative. Thank you!

  • satyajitsinh kosamiya

    Last smile was painful !!

  • GoldenTroo P
    GoldenTroo P 3 days ago

    Unfortunately,my stomach nerves have snapped 😐 But I can stop eating by watching Fox News

  • Calvin Lin- Random Useless Things

    This channel

    Is kid friendly and understandable

  • Anne
    Anne 4 days ago

    i dont know about y’all but when the food starts piling up to my throat and i cant shove anything down anymore i full

  • dis app0intment
    dis app0intment 4 days ago

    I don't know if it is just me, but I never feel hungry or full. I just it because I have, but then again, I have an eating disorder.:(

  • Danly
    Danly 4 days ago +1

    I usually ignore whenever my stomach starts to growl (which is basically everyday for me). I usually have only one meal per day anyway. (BTW, I'm 20 and 103 pounds.)

  • Rara Avis
    Rara Avis 4 days ago

    Love these animated videos...learning is so much fun this way!

  • Cozyguineagames
    Cozyguineagames 4 days ago

    Is anyone else eating while watching this video? No just me ok..

  • Coffeman
    Coffeman 4 days ago

    Какого хуя это говно делает в трендах русского ютуба?

  • Carl Clever
    Carl Clever 4 days ago


  • S N
    S N 4 days ago

    TL;DR/W - when food touches the top of your tummy it tells your body that you’re full

  • Kewl
    Kewl 4 days ago

    1.13 is it just me that finds the stomach reaction really cute 😂 like the water fills and its like "Oh thats fast" and smiles then realizes what it is and like "wait. You kidding me?"

  • valker 1234
    valker 1234 4 days ago

    Why didn't I learned this in school?

  • Moumita Deb
    Moumita Deb 4 days ago

    The growling beast of hunger is just😂😂😂😂😂....😂😂😂. but very informative video...grt work 😍

  • Justin Kanzah
    Justin Kanzah 4 days ago

    love the sun at 3:14

  • tavoncarroll
    tavoncarroll 4 days ago

    0:30 Did that pancake just walk off like nothing happened after this guy stopped gnawing on it? That’s some real nonviolence discipline right there hahah

  • Yope Golo
    Yope Golo 4 days ago +1

    My body?

  • Maimuna Fairuz
    Maimuna Fairuz 4 days ago


  • Faiza
    Faiza 4 days ago

    What about the stressful times where you feel the need to keep eating and you you just don't feel full like you normally would after some time?

  • Alexis Turcios
    Alexis Turcios 4 days ago

    Just turn all your food into a smoothie and inject it directly into your heart and then and only then will you feel full.

  • MrGear
    MrGear 4 days ago

    Not sure if I feel more or less hungry after watching this.

  • Chris Keo
    Chris Keo 4 days ago

    Man vs Food debunks this theory

  • Jed Stark
    Jed Stark 4 days ago

    You're full when it's hard to breath and stand

  • vicky Etless
    vicky Etless 4 days ago

    Explain paradox theory

  • hyou zan ren
    hyou zan ren 4 days ago

    Great now i can blame my brain scientificly!

  • killertoyson
    killertoyson 4 days ago +6

    My body doesn’t know i just keep eating till i get bored

  • dbzkhalid01
    dbzkhalid01 4 days ago

    I'm never full. I can eat man... I can eat!

  • Vatablous Devil
    Vatablous Devil 4 days ago

    I just ate 6 apples very slowly.

  • RFID
    RFID 4 days ago

    What happen when we're fasting? When fasting, I don't feel as hungry as usual.

  • Goofy Emoji
    Goofy Emoji 4 days ago

    2:23 "...consuming your food at lightning speed." Is that even possible? Lol, Idk why I laughed so hard at that

  • r2c123
    r2c123 4 days ago

    I’m hungry therefore watching this

  • blitzwaffe
    blitzwaffe 4 days ago

    You forgot to draw headphones on the hotdog at 3:50. You're welcome :p

  • Grreatlife
    Grreatlife 4 days ago

    I eat even if I’m
    Full 💛💛💛

  • Gissellybeans Farfán

    So relatable
    * When your friends start to look as food and you want to eat them*

  • Ramona Brown
    Ramona Brown 4 days ago

    This isn't true, the feeling of fullness comes from hearing. Wear earplugs while you eat in a quiet atmosphere (no tv, no family talking) you will get full faster and you will lose weight.

  • Hyperblader
    Hyperblader 4 days ago

    I wish I could know the feeling of being "full"

  • Thepianist126
    Thepianist126 4 days ago

    It knows when I don't feel like eating anymore food and my tummy gets big lol.

  • FracFrac96
    FracFrac96 4 days ago

    I literally had an exam on this topic this morning lol, this explained everything very concisely. Great video!

  • frito burrito
    frito burrito 4 days ago

    I don't stop eating when I'm full. I stop when I don't hate myself.

  • Annabelle Juanitas
    Annabelle Juanitas 4 days ago

    2:25 ,Why is that so funny?

  • Mamelia Sousa
    Mamelia Sousa 4 days ago


  • John B
    John B 4 days ago

    The meal is not over when I'm full, the meal is over when i hate myself
    -Chronic Masturbator

  • Jimmy Lander
    Jimmy Lander 4 days ago

    The animations are so cute ^^

  • Anjali Donn
    Anjali Donn 4 days ago

    I am currently eating right now LOL

  • Cori Tucker
    Cori Tucker 5 days ago

    I laughed so hard when he said when you eat your food so fast like lighting bc I related to it

  • SydLovesLacey
    SydLovesLacey 5 days ago

    2:24 Okay but, me tho.

  • Llozepi Z.
    Llozepi Z. 5 days ago

    Obese person: It doesn't

  • sathy mangalam
    sathy mangalam 5 days ago

    Thank those Rick and Morty episodes huh?!

  • Jäger
    Jäger 5 days ago

    Strange Question: Could your intake of food increase, I remember not that long ago I could eat a small meal in the morning and not be hungry until nighttime, but now even if I eat a big meal I'll get hungry in 2 hours flat.
    Could increase intake of food cause you to get more hungry faster than others?

  • Anisha K
    Anisha K 5 days ago

    Right as i watch this i feel realy hungry

  • Michelle Sousa
    Michelle Sousa 5 days ago +1

    0:43 .. someone is totally eating 5 apples whole

  • ffliberty
    ffliberty 5 days ago

    Doesn’t work for binge eaters

  • K D
    K D 5 days ago

    It never know when I'm full if bacon is involved.

  • Fringe
    Fringe 5 days ago

    all this video makes me realize is how complex the body is

  • yoroshiku
    yoroshiku 5 days ago

    "How does your body know you're full?" It doesn't. I've been eating nonstop since my last breakup, and can't get off the bed without being lifted by a crane.

  • Zombie terminator
    Zombie terminator 5 days ago

    my teacher always puts ted

  • William John
    William John 5 days ago

    I am not curious about this hunger i am curious about this animation!

  • Fresh_
    Fresh_ 5 days ago


  • ali j
    ali j 5 days ago

    Hormones or enzymes?🤔

  • Pixel Bytes - Pixel Artist

    And so done with the Bose x Ted ads

  • bbyjc
    bbyjc 5 days ago

    that time of the month too?

  • xOneCinema
    xOneCinema 5 days ago

    I got hungry mid video and couldn't keep focus

  • Theee Chosen One
    Theee Chosen One 5 days ago +1

    I eat veggies all day.....I still feel empty....mentally. At least I can fit in my jeans though.

  • jeonky.
    jeonky. 5 days ago

    Bahahha they're so cute

  • ocean man
    ocean man 5 days ago

    For me fruit has never made me full. One time I tested it and I ate 15 oranges and still wasn't full. What is wrong with me.

  • David Wang
    David Wang 5 days ago

    I wish I could deepthroat like 2:25

  • CheeseMan50
    CheeseMan50 5 days ago

    Im hungry now