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The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

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Human kidneys will clean about 1 million gallons of blood in an average lifetime.

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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

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