Men Now Have A Medical Reason To Wear Kilts: It Keeps Sperm Cooler
Temperature affects how much sperm a man makes, so there's been speculation that the freedom offered by a kilt can increase production. Turns out that that at least could be right: a new metastudy says wearing a kilt "likely produces an ideal physiological scrotal environment, which in turn helps maintain normal scrotal temperature, which is known to be beneficial for robust spermatogenesis and good sperm quality."
The study (PDF), published in the Scottish Medical Journal, reviewed the literature on the link between scrotal temperature and reproduction. We know sperm fares better in lower temperatures, and some researchers have suggested that restrictive clothing could negatively affect sperm production. Enter: the kilt, which author Erwin J.O. Kompanje describes thusly: "The Scottish kilt is a male garment that resembles (but is not!) a knee-length, pleated skirt."
http://www.popsci.com/science/article/2013-04/wearing-kilt-makes-your-sperm-stronger-scottish-study-finds
Hey I'm in!