You can reschedule your sleeping pattern by not eating 12-16 hours before you want to be awake. Upon eating after this time period, your internal clock will reset to a new day, with the time of your first meal being interpreted as "morning".
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Those who get out of bed by 7am are more likely to be thinner and happier.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
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Cows can sleep standing up, but they can only dream lying down.
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Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
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47% of people have a nightmare at least once a month.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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