18 Tricks to Teach Your Body
Several neat tricks from Men's Health including how to cure brainfreeze, prevent near-sightedness, breathe underwater, clear a stuffed nose, and overcome the urge to pee.

Most of the tricks involve convincing your brain that what it thinks is happening actually is not or using various nerve receptors in one area to help alleviate a symptom in another.

Out of the 18 listed here I've heard of maybe one (the brainfreeze) and found the pee one most interesting (think of sex?)

18 Tricks to Teach Your Body

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