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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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There are approximately 3 million unintended pregnancies in the United States each year.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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There are 20 feet of blood vessels in each square inch of human skin.
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Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.