Fertility problems rise for men over 35

Men may be less able to father children as they get older, a study suggests. Researchers looked at data on more than 12,000 couples at a fertility clinic. Most were being treated because the man was infertile. If the men were over age 35, the pregnancy rate was lower. The miscarriage rate was also higher. HealthDay news wrote about the study July 7, 2008. Results were presented at a conference on reproductive health in Spain.