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Author Question: In Brazil, what percentage of the population has African descent? A) 30 percent B) 45 percent ... (Read 103 times) |
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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 successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.
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According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.
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Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.
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There are 20 feet of blood vessels in each square inch of human skin.