The familiar sounds of your heart are made by the heart's valves as they open and close.
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Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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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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Women are 50% to 75% more likely than men to experience an adverse drug reaction.