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There are 20 feet of blood vessels in each square inch of human skin.
Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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