Going bald keeps you from getting crabby.
Apparently with so many people waxing and shaving, pubic lice have nowhere to roam. According to this Bloomberg article:
Waning infestations of the bloodsuckers have been linked by doctors to pubic depilation...(For some reason I like the way that phrase was written)
Not only are there some health benefits to this craze, from an economic standpoint companies are seeing sales booms:
The global market for depilatories was worth $4.69 billion last year, according to London-based Euromonitor International Ltd., which estimates sales increased at a 7.6 percent average annual clip the past decade. Cincinnati-based P&G, Slough, England-based Reckitt Benckiser and Energizer Holdings Inc. (ENR), based in St. Louis, dominate the market, which Euromonitor predicts will reach $5.6 billion by 2016What a lousy way to make some money.