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Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.
Did you know?
In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).
Did you know?
On average, the stomach produces 2 L of hydrochloric acid per day.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.