Sexual health education aimed at young men must go beyond simply telling them to use condoms.
The scientists recruited nearly 7,000 men and women, aged 50 to 75 from Iran for the study.
Carl Djerassi, the chemist widely considered the father of the birth control pill, has died.
Women who use a specific type of injectable birth control have a slightly higher risk of HIV infection than those who take the pill, said a study.
Researchers at Massachusetts General Hospital in Boston have discovered a new way to cure intestinal infections---by making you gulp down poop!