Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
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Your spit has a painkiller 6 times stronger than morphine. It contains a substance called opiorphin that is stronger than morphine.
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Fidgeting can burn about 350 calories a day.
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Cuddling (or other ‘love’ acts) helps to heal physical wounds faster due to the release of Oxytocin which is proven to reduce swelling.
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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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Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
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Sitting straight upright in your chair is bad for your back. You should instead slouch at an angle of 135 degrees.
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