eli5: Why sleeping late and waking up late is worse than sleeping early and wake up early

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Lets say I sleep at 1am and wake up at 9am, why my body reacts negatively compared to sleep at 9 pm and wake up at 4 am. Both are 8 hours of sleeping time. How can my body knows it is past 12pm and decides to give me a bad day because of it.

In: Biology

11 Answers

Anonymous 0 Comments

It helps to get sunlight asap after waking. When you wake up, go outside for 10 minutes. The fresh air and natural sunlight will invigorate you.

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