Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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The human brain is more active during sleep than during the day.
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Banging your head against a wall uses 150 calories an hour.
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The human brain has the capacity to store everything that you experience.
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Research indicates that babies who suck on pacifiers are more prone to ear aches.
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Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
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When you take a step, you are using up to 200 muscles.
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When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
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