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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?
More than 4.4billion prescriptions were dispensed within the United States in 2016.
Did you know?
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
Did you know?
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

