(b) Shettles recommends that for boys
ladies nike heels , the man wear loose underwear only — that is, men who usually wear briefs or other tight underwear should switch to boxers. The idea is the same as wearing boxers to increase overall fertility — the testicles need cooler temperatures for sperms to survive
high heel nike shoes , and the Y-sperms
high heel jordan shoes , since they are weaker, will be helped more than the X-sperms by this method. However, Shettles does NOT recommend the opposite, that men wear briefs for a girl — this will just decrease overall fertility.