Weight and sperm count- it makes a difference

Researchers at the National Institutes of Health, looked at the effects of obesity on sperm quality. They determined that men who were overweight (high BMI) or has a high waist circumference had significantly lower sperm counts and significantly low semen volumes than men of normal weight. Other semen parameters such as motility (percent swimming), morphology (percent normal shaped) and DNA fragmentation (proportion of sperm with normal DNA) interestingly were unaffected.