why, when we wake up from a short nap we feel so much more groggy than when we wake up from 8 hrs of sleep.
In: Biology
You woke up in the wrong part of a sleep cycle. It’s like if you sleep for some random amount of time, say 3 hours, and you feel somewhat fine and can function for the rest of the day. But if you slept four hours you feel like a zombie and have a hard time waking up.
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