There are 20 feet of blood vessels in each square inch of human skin.
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The average office desk has 400 times more bacteria on it than a toilet.
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Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.
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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
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The familiar sounds of your heart are made by the heart's valves as they open and close.