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.
15
The average person falls asleep in seven minutes.
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Those who get out of bed by 7am are more likely to be thinner and happier.
20
Honeybees never sleep.
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44% of kids watch television before they go to sleep.
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