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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Illicit drug use costs the United States approximately $181 billion every year.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.