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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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People about to have surgery must tell their health care providers about all supplements they take.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.