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Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.
Did you know?
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
Did you know?
The average adult has about 21 square feet of skin.