One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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Bats sleep 18-20 hours per day.
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The higher someone’s I.Q. the more likely they are to be sleep deprived.
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The average cat sleeps about 2/3 of the day.
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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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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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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".
11
In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
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