How does caffeine keep us awake? - Hanan Qasim

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.

[siddjoshi]

when it comes to knowledge content
_5-min of TED-Ed video_ > _a week in my classroom._

[tingtongtherussianspy]

Cop: How high are you?
Me after 5 cups of coffee: No it’s hi how are you.

[HizkiaHuwae]

It is amazing how you successfully explain a complicated biochemical process in our body in such simple way. Love the illustrations as well. Thank you!

[shashankdixit]

Love the animation which helps in understanding.

[jakethesnakelover]

I drink coffee almost every day because I love the taste and smell of it. But to avoid dependance on it I limit myself to only drinking it if I’ve had a good sleep. If I didn’t get enough sleep I won’t have coffee and that gives me the motivation to get proper sleep next time. So I use it like a reward system with positive reinforcement. I’ve been on pattern for like 5 months now and I don’t get any withdrawal symptoms when I miss a day and can easily go a few days without it.

[ogusqiu]

The mitochondria is the powerhouse of the cell

[ivana]

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.

[wulfazwlkwos]

Ted-ed makes me learn more biology than 4 years of high school

[sadduck]

3:46 "And contribute to insomnia"
_Sips 4th cup of coffee_
Huh

[crazybrickstudios]

“You got the stuff?”
“Yep, here ya go. 1 coffee. Anything else?”
“Yeah, I’ll have a cake pop.”

[jerrie]

If caffeine is a drug, does that mean that Starbucks is a drug dealer?

[folklore]

1:26 as soon as i hear ATP i think of biology class and immediately think “aDenOsInE tRiPhOsPhAtE”

[saurabhsaxena]

This video explained caffeine, sleep, neuron receptors, why coffee keeps us awake, why it makes us feel better, why I feel grumpy when I have recently woken up (AKA I still have some adenosine docked in my neuro-receptors) or really wanna go to sleep, and why I'm perfectly right to tell my parents to stop overdosing on coffee. Thanks, TED-ed!

[angel-quqq]

i was just getting curious about this as a person who doesn't drink coffee and wants to stay awake at 2 am. this was very informative yet simple to digest, thank you Ted-Ed!

[human-being]

The best thing is the animation TED-Ed makes, to make their audience understand the topic.

[garv]

am i the only one who feels sleepy after drinking coffee ??

[louisedanile]

Me: gets headache because of coffee abstinence
YouTube: recomends this

I think YouTube knows a bit too much about my life. Gotta find where the hidden camera is.

[DahliaRose]

Coffee is my friend. I get depresso, I have the espresso.

No joke, I feel sad and tired, my response is, well, time for the coffee.

[cq.cumber_offishial]

"Hey, you got the stuff?"
"Yeah, " *shows ten bags of caffeine*
"Woah man woah man calm down, calm down!"

[teixeirao]

My gratitude to whoever invented this education institution! BRAVO!