Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
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Lack of water is the #1 trigger of daytime fatigue.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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You forget 90% of your dreams.
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The strangers in your dreams are actually people that you've seen in real life.
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Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
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The human brain is more active during sleep than during the day.
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