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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
The familiar sounds of your heart are made by the heart's valves as they open and close.
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.
Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.