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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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The average office desk has 400 times more bacteria on it than a toilet.
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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
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In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.