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Did you know?
All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
Did you know?
The average adult has about 21 square feet of skin.
Did you know?
The horizontal fraction bar was introduced by the Arabs.