"Dysania" is the state of finding it hard getting up out of bed in the morning.
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People who sleep late have more mental stamina and can outperform early risers.
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Those who get out of bed by 7am are more likely to be thinner and happier.
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Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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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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