Couples have a high risk of being subfecund if they are both obese.

Current smoking in adult life moderately impairs the semen quality. It is well known that semen quality is associated to fecundity. Therefore, it would be sensible to advise men to abstain from smoking to avoid decreased fecundity.

The overall results of the present study create a somewhat ambiguous pattern, but give some support to the idea that dietary POP exposure might be harmful for couple fertility.

No abstract

The results suggest that there may be an effect of high maternal BMI on the sons' semen quality, but the study had only enough power to justify a critical evaluation of the hypothesis in a larger study.