Exposure to hot baths or hot tubs can lead to male infertility, but the effects can sometimes be reversible, according to a new study led by a university of california, san francisco urologist. Results from a three-year study analyzing data from infertile men who had been repeatedly exposed to high water temperatures through hot tubs, jacuzzis or hot baths are reported in the january-february 2007 issue of “international braz j urol,” the official journal of the brazilian society of urology. Study findings will be available online at http://www. Brazjurol. Com. Br. “it has been believed for decades that wet heat exposure is bad for fertility, as an old wives’ tale, but this effect has rarely been documented,” said