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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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People about to have surgery must tell their health care providers about all supplements they take.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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Your heart beats over 36 million times a year.
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Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.