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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Your heart beats over 100,000 times a day!
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A sneeze can travel as fast as 100 miles per hour.
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Your skin is actually an organ.
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The average sperm cell swims at 8 inches per hour.
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There's a new vaccine for alcoholism that gives drinkers an immediate and harsh hangover, even if they drink a small amount of booze.
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