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Did you know?
The average adult has about 21 square feet of skin.
Did you know?
The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.
Did you know?
Illicit drug use costs the United States approximately $181 billion every year.
Did you know?
Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
Did you know?
The horizontal fraction bar was introduced by the Arabs.