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TED-Ed

How does caffeine keep us awake? - Hanan Qasim

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34,093 Questions Answered

TEDEd Animation

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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.

Watch the video and finish the Think section to complete the lesson.


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TED-Ed Animations feature the words and ideas of educators brought to life by professional animators. Are you an educator or animator interested in creating a TED-Ed Animation? Nominate yourself here »

Meet The Creators

Educator
Hanan Qasim
Script Editor
Eleanor Nelsen
Director
Draško Ivezić
Producer
Draško Ivezić
Animator
Draško Ivezić, Ira Bulić
Storyboard Artist
Draško Ivezić
Character Designer
Draško Ivezić
Sound Designer
Jure Buljević
Associate Producer
Jessica Ruby
Content Producer
Gerta Xhelo
Editorial Producer
Alex Rosenthal
Narrator
Addison Anderson

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