It's pretty straight forward: Sleep deprivation is really bad for you.
But even if you don't pull all-nighters, chronically getting too little sleep can be dangerous. For example, drowsiness behind the wheel can be just as deadly as driving under the influence. Over time, in serious cases, sleep deprivation can result in heart disease, stroke and diabetes. And in the immediate aftermath, going without sleep can lead to lack of focus and brain fog, stress and irritability.
But what happens after just one night of no sleep? Watch the Ted-Ed video above to learn about an experiment a high school student pulled in the 1960s -- he stayed awake for 11 entire days -- and the effects sleep deprivation had on him. Then it might be time to plan your next nap!
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