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Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.
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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.