"Dysania" is the state of finding it hard getting up out of bed in the morning.
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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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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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44% of kids watch television before they go to sleep.
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Termites work 24 hours per day and they do not sleep.
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The human brain is more active during sleep than during the day.
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