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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?
According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.
Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.