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Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.

