Coffee doesn’t actually give you energy. Within an hour of your first sip, a molecule smaller than a virus sneaks past your brain’s security, locks the door on your sleepiness and starts a clock that keeps ticking long after bedtime.
Two out of three American adults drink coffee every day. Follow one sip, minute by minute, with Caffie the caffeine molecule: why most of coffee’s flavor comes from your nose, how caffeine blocks adenosine, the molecule that makes you sleepy, why coffee, and even decaf, can wake up your gut within minutes, what adrenaline does to your heart, and whether coffee really dehydrates you. Then into the liver, where caffeine’s five-hour half-life explains why a 3 p.m. latte can steal an hour of sleep, the crash and the withdrawal headache, how much caffeine is considered safe, and the coffee-nap trick from a 1997 driving study.
Written and animated by Dembly Explains
Chapters
0:00 Take a sip
0:29 0 seconds: the smell wins
1:03 +1 minute: the stomach
1:31 +45 minutes: the brain
2:28 +1 hour: heart and gut
3:10 +5 hours: the liver
3:45 Bedtime: the crash
4:21 Is coffee bad for you? (and the coffee nap)
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