Yeah, as weel as certain types of underwear can cause lower sperm, not permanent, but the whole high temperatures thing. For the highest fertility boxers are preferred and boxer briefs and tighty whities are the worst. Tighty whities look terrible anyway, too bad those boxer brief are damn sexy!
Hmmm.. hmmm....hmm..... Interesting ! Thanks for informing I think thats all I can say right now. Digital duke