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Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).
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Excessive alcohol use costs the country approximately $235 billion every year.
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The horizontal fraction bar was introduced by the Arabs.
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As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.