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There are more nerve cells in one human brain than there are stars in the Milky Way.
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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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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.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.