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Asthma cases in Americans are about 75% higher today than they were in 1980.
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About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.
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The familiar sounds of your heart are made by the heart's valves as they open and close.