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Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.
Did you know?
The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.
Did you know?
Cyanide works by making the human body unable to use oxygen.
Did you know?
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").