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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.
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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.