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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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The human body produces and destroys 15 million blood cells every second.
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The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.