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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Sleeping on the job is acceptable in Japan. It is viewed as exhaustion from working hard. Some people fake it to look committed to their job.
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The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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People who sleep late have more mental stamina and can outperform early risers.
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Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
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Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
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