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According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one 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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The familiar sounds of your heart are made by the heart's valves as they open and close.
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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.