A woman's genetic make-up accounts for at least a third of her ability to climax during sex, say researchers, and may even account for as much as 60%. Further investigations into the genetic differences that influence orgasms in women could help produce drugs to treat female sexual dysfunction, they say. Relatively little is known about the female orgasm, the peak of sexual excitement normally marked by vaginal contractions. "It's a taboo subject," explains Tim Spector, who directs the Twin Research Unit at St Thomas' Hospital, London, and co-authored the report. Women do not need to climax in order to conceive...