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Vaccines prevent between 2.5 and 4 million deaths every year.
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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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There are 60,000 miles of blood vessels in every adult human.
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According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.