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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

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In 1844, Charles Goodyear obtained the first patent for a rubber condom.

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To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

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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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More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

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