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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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The human body produces and destroys 15 million blood cells every second.
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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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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.