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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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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

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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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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

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

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