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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.