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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
Cyanide works by making the human body unable to use oxygen.