Does Sex Improve Your Health?

Christie Aschwanden isn't convinced by studies touting the physiological benefits of sex:

None of the studies…would qualify as top-shelf medical research. Even Irwin Goldstein, editor-in-chief of the Journal of Sexual Medicine, admits the evidence is flimsy: “This is sort of, you find what you want to find. The papers are controversial. It’s a lot of anecdotal work.” Some have criticized Stuart Brody’s work in particular as showing a bias toward specific heterosexual acts. (“He’s obsessed with PVI,” one expert told me.) But almost all the studies in this area suffer from a suspect methodology.