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There are 20 feet of blood vessels in each square inch of human skin.
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A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.
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Illicit drug use costs the United States approximately $181 billion every year.
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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.