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People about to have surgery must tell their health care providers about all supplements they take.
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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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Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
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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 1844, Charles Goodyear obtained the first patent for a rubber condom.