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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.
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The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.
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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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Approximately 500,000 babies are born each year in the United States to teenage mothers.