I had pelvic muscles of steel, thanks to over a decade of lifting heavy weights, a practice I continued until two weeks before giving birth. Eventually, after weeks of lying around the house, I made an appointment with a physical therapist, who, after hearing about my problems, forwarded me on to a pelvic floor specialist. And it wasn’t terribly long before my own pelvic floor episode that I learned we’ve all got one—old people, children, women, men. Most people’s familiarity with pelvic floor activity extends only as far as “Kegels,” a semimystical gripping motion that women are encouraged to practice in order to be good at sex, and more wrongly, to get a baby out of one’s birth canal. But Kegels only capture one small aspect of what the pelvic floor is capable of.