Potential fatherhood was the issue when the controversy between loose-fitting boxer shorts & tight-fitting briefs erupted onto the scene, but mother Nature made guys so that their sperm is kept at a slightly lower temperature than normal body temperature, and it was discovered that tight-fitting briefs produced a warming effect that reduced fertility in women.
In other words, the “family jewels” were getting a bit too warm.
That was alarming news for aspiring fathers because if you do some straight-forward math, it is amazing that any of us exist today, however every 1 of the nearly 8 billion people alive today is the result of a chance meeting between a single sperm cell & 1 egg. The numbers are more astounding when you consider that the possibilities of anyone being born are about 1 in 500 billion, the quoted number of sperm produced in a lifetime by a normal male. In 1992, researchers from many major universities & a LA sperm bank concluded that air-conditioned environments do not prevent deterioration of human semen quality during summer. This was nice news to guys & the Heating, Ventilation & A/C industry. Many guys switched to boxer shorts, but those who chose to stick to briefs may have begun to pay more attention to their Heating, Ventilation & A/C systems at cabin & work. This added a degree of urgency to keep the Heating, Ventilation & A/C plan in nice working order with respected repair by a qualified Heating, Ventilation & A/C serviceman. It’s been proven that ladies like warmer temperatures than guys so perhaps the battle over the Heating, Ventilation & A/C thermostat is rooted in the male survival instinct. Men wearing briefs who like it cooler are merely protecting future generations, what remains unchanged is that most guys are ready to engage in an act of procreation at any time regardless of their choice of underwear.