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Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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Asthma cases in Americans are about 75% higher today than they were in 1980.

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Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

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