Some blood pressure and gout medications also interfere with fertility, and common antibiotics, such as tetracycline and erythromycin, can cause temporary declines. Finally, any man in his reproductive years who receives chemotherapy or radiation therapy should consider banking sperm. Any man who works around pesticides or heavy metals, such as cadmium, lead, and manganese, should wear protective gear. Although there's lots of talk about the effect of briefs, as opposed to loose-fitting boxer shorts, no scientific evidence shows a difference. We do know, however, that frequent excursions in a hot tub can cause temporary declines in sperm production.
Fertility is close to the last thing on the minds of most young men.
Someday, though, you may be glad you took steps to ensure your future as a father.