He also identified the intake of...
drugs by diabetic patients, recurrent urinary tract infection, stress, nutritional deficiencies, obesity, self-medication and smoking among the risk factors for low sperm count and erectile dysfunction.
He further reasoned that people like welders and drivers were more vulnerable to low sperm counts and permanent infertility, advising people to use loose fitting under wears, to allow air to circulate round their testicles.
However, regular bathing also helps to bring the testicular temperatures down... So guys, make sure you visit the bathroom at least twice in a day. It's for your own good.