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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 heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
Did you know?
Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.
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Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
The longest a person has survived after a heart transplant is 24 years.