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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.
An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.
The familiar sounds of your heart are made by the heart's valves as they open and close.
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.