How does caffeine keep us awake? - Hanan Qasim

View full lesson: /> Over 100,000 metric tons of caffeine are consumed around the world every year. That’s equivalent to the weight of 14 Eiffel Towers! Caffeine helps us feel alert, focused, and energetic, even if we haven’t had enough sleep — but it can also raise our blood pressure and make us feel anxious. So how does it keep us awake? Hanan Qasim shares the science behind the world’s most widely used drug. Lesson by Hanan Qasim, directed by Adriatic Animation.

If caffeine is a drug, does that mean that Starbucks is a drug dealer?
Don't do coffee kids
sidd joshi
when it comes to knowledge content _5-min of TED-Ed video_ > _a week in my classroom._
garvita dabas
am i the only one who feels sleepy after drinking coffee ??
Ting Tong The Russian Spy
Cop: How high are you? Me after 5 cups of coffee: No it’s hi how are you.
Life Starter Pack
I consume half of these Eiffel towers in caffeine every year
Philip Xu
The mitochondria is the powerhouse of the cell
Irun Mon
Caffeine doesn't affect me, I can sleep right after I drink coffee or tea
Sophia Chung
But first, covfefe.
Shashank Dixit
Love the animation which helps in understanding.
AnneMarie van Dijk
Why do people say they're early when they're actually on time
Tosh T
Love the animation as usual. 👍
lil nugget boi
The last digit like is what drink you are. 1. Coffee 2. Tea 3. Orange juice 4. Pepsi 5. Coca cola 6. Milk 7. Water 8. Smoothie 9. Wine 0. Cocktail Tell me which one you got! Edit: Thank you all for the likes! I have never gotten this many!
Tirtharaj Biswas
the narrator makes me want caffine XD
I enjoy covfefe
Mason Lee
Coffee beans are plants, not drugs. Therefore, Starbucks is not a drug dealer, it is a florist.
Jake Marchbank
More knowledge, yay
ashutosh chatterjee
anyone else waching this while drinking coffee?
VyTEM /GlitchCraft
Other people: coffee makes them stay awake Me: coffee makes me really sleepy and makes me fall asleep in 1 minute
main man anderson.
Continual Improvement
Caffeine memes 😁
Satria Sutena
Somebody: *blah blah blah **_coffee_* Me: *dramatic head turning*
A Random Turtle
I was never this excited for a video. Been waiting for this lesson a LONG time
Miguel Oros
Came here to see all the *"Who's here from jack's video"* comments.
Chelssy Joseph
Cool, so all I need to do to stay alert is get addicted to caffeine, get anxiety, quit, hope anxiety goes away, and I'm good?
Not Applicable
Lol I'm watching this because coffee keeps me awake!
2:44 There you can see my yellow face when life kicks my hopes away in one day.
I overdosed caffeine rn. When I'm trying to raise my hand it's weirdly falling. Also my hands are shaking. AMA
Ponderer Of Pointless Dreams
*coffee is a drug*
Sylvie Friedman
Omg the caffeine molecule's face I'm dying🤣
Who is here from Jack
tusharmouli sharma
take caffeine to school
Abdul Wahab
Explained in a beautiful way. Thank you
Tejwinder Singh
such a beautiful work of art is Human body! Amazing
I get caffine headaces to due t to lack of it. I regret it
Priyamvada Kundu 13BEC1113
I 'm here as Jack suggested for it ... and it is lot informing
Ali Qazilbash
As with most psychostimulants, caffeine works best when taken in a good mood...
dream chaser
who came here after watching jacksepticeye
Daniel Royer
Useful information ends at 3:00. After that, it's mostly "thank you captain obvious" information.
jupiter is a bean
the animation is so cool!!
Caffeinated Monbebe
who's here from jack's video?
Jackseptickeye anyone?
Paula Nesev
Studying at 3:00 am with a lot of coffin already consumed and this Shows up coincident? 😄
Madelyn Kauffman
I don’t think there’s caffeine in chocolate. I always eat chocolate and I don’t get any symptoms.
Srinivas Pavan
I was making coffee, Then I saw this.
Anyone else never had coffee?
Mr. Clean
if u use Mr.clean your be asleep
Swaggy Kitty101
"It's the world's most highly used drug" I thought that was weed...
Keep Calm
Caffeine is life ! LMAO
Kevin Joe
Now do a video describing why all of these effects don't work on me!
I stopped drinking water long time ago. It is just ☕ now 🙄
i came here because of jack <3
Mustafa Al mohamad
it is not true. my daddy drink coffee and he feel sleepy Straightaway
Galaxy rock studio 2
I mean caffeine dosent make people stay awake my dad drinks coffee and feels sleepy right after
Review Central
Caffeine can also flush away some of the bodies vitamins. Its similar to ejaculation
Layla Bug
When i can't sleep i drink coffee and it puts me right to sleep. I must have a backwards brain lmao
Wait if caffeine is the worlds MOST used drug is sugar on second place or something???
dana mousa
Ted-Ed, your I really really really appreciate all of your efforts on making these awesome videos everyday for us, what makes your videos amazing is your voice, the animation that you use for making your videos, the videos you make everyday to give us informations and make us smarter everyday, thanks you again, your videos are fantastic. keep on going on this channel man!
These adorable and colorful health animations really soothe my soul compared to really unsettling realistic looking medical resources.
behnaz safavi
That was real good also. I love the drawings and animations. Well done as always. And thank you.
Prem Nikam
I love your voice
Ema 148
I'm literally addicted to the narrator's voice.. He's got the most beautiful voice I've ever heard in my life..!!!
Cringer Fire
Jacksepticeye told me to come here. Nice stuff
Diz The Invincible
At first I thought this was Dumb Ways To Die because of the thumbnail Then I saw the title
I literally consume 315 MG Caffeine today.
It's a bit weird ( for me) that caffeine usually relax me, if what I'm drinking is coffee. ~Cool video, it's nice to get information~
I like coffee
Lizelle Pieterse
Is 2 cups of coffee (about 2 teaspoons) really bad for you or is is okay?
Johny Boi
1:04 Even bees have to deal with those long Starbucks lines 😂😂😂
captain cronch
Last time I drank coffee was two years ago
Joi F.
wow, the receptor visuals were very nice as well as helpful! Good job, TED-Ed :D
this narrator voice makes me sleepy..
Arnoldo Gonzalez
Logic is biracial, btw
Alex Voxel
Cool, I'm drinking coffee right now!
Wait, so does that mean the more energy (i.e. ATP) we use in the brain, the more sleepy we get?
Caragea Elvis
I drink coffee but i am still sleeping
S Li
Caffeine is a gateway drugs to Starbucks HELL🌋
J. Cabarles
0:36 "it can also raise our blood pressure" like the cartoon sleep deprived italian man is literally raising a baby blood pressure.
I can tell you how it keeps you up.....ya drink it dhu... Lol
Winner Iruke
Nice about caffeine, thanks for information.
ive needed this explanation for so long. thank you thank you thank you so much everything is clear to me now
Star TechTricks
Who make those animations for your channel... 😂😂😂😂
England is my city
covfefe is better
Xx_BANANA5169_x X
TITLE: how does caffeine keep us awake me thinking in my head: it has COCAINE in it
Gracie Is Bored
Caffeine keeps me awake especially Starbucks Strawberry acai It tastes so good just like a Arizona fruit punch
Hana Kupková
Thanks so much for your videos. Could you please make one about Logical Fallacies?
Vasectomy Fail
is he talking more slowly and monotone than usual. drink some coffee bro!
Shogan Flamemasta
0:18 Most of this caffeine is consumed by french people
Retto Elbaroda
It triggers me that he says 14 Eiffel towers but in the video there only is 13!
Daniel bowes
0:28 "Alert, focused, happy, and energetic"
How caffeine keeps us awake is simple.... They Stimulate our Senses.
Bobby Boi
Marvin K.
i was drinking coffee and this video showed up! Good timing :D
This is the most informative and hilarious video I've seen so far this year. Great work! :)
To me Every Time i drink Coffee it makes me sleepy does this happen to anyone else
Lavy Aisha
more like "how does caffeine *never* keeps me awake" i don't think i can do night shift lol
Stein Grey
How timely. I'm currently looking for coffee.
Irene Lee
Wow. never knew this!! thank you for the easy and clear explanation!
Weijian Lim
Ivan A
For people that get sleepy from drinking coffee, stay hydrated with water! It worked for me and I'm sure it can help others out too.