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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
There are more sensory neurons in the tongue than in any other part of the body.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.
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