contraception

Which are the most effective? What are the side effects? What does the research say?
A new study looks at the effect of long-term oral contraceptive use on endurance performance in active women. Is the pill interfering with your oxygen uptake ability? Well, yes, science says it is.
Does the menstrual cycle affect a female athlete's endurance abilities? New science looks at female rowers, contraception, and menstruation to determine the relationships.