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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one 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.
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.