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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Women are 50% to 75% more likely than men to experience an adverse drug reaction.
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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