Research has shown that too much exercise can cause infertility due to low body weight and hormonal changes. Exhaustion caused by intense and regular exercise may render a body unable to conceive or sustain a pregnancy. But what is too much exercise? It can vary from person to person.
While one person may exercise three times a week for 60 minutes and be incapable of getting pregnant, another could work out 21 hours a week and have a healthy baby [source: Arc Fertility]. Research, however, has established some basic guidelines. The Mayo Clinic encourages women seeking to become pregnant to avoid working out more than seven hours a week [source: Heckel]. Outside of time parameters, studies have shown that working out every day -- or to the point of high fatigue -- is associated with an inability to become pregnant [source: Guy].
Your mother may have told you "all things in moderation." That advice rings true if you want to become a mother or father, too. Exercise and good nutrition are important components of a healthy pregnancy. Just don't exceed the time guidelines, become underweight, overheat or exercise to the point of exhaustion. Otherwise, you should be able to embrace your role as a healthy, active parent.