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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?
The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
Did you know?
The longest a person has survived after a heart transplant is 24 years.
Did you know?
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.