“Whatever nerves had affected me the previous times disappeared. And I realized: If I can’t be fully vulnerable, mentally and emotionally, it stops me from being able to be vulnerable physically. “Because the naked body,” he adds, like an epiphany that’s taken his entire childhood to realize, “that’s a very vulnerable thing, you know?” Having 100 orgasms a day isn’t as fun as it sounds. In fact, it’s an uncontrollable condition called persistent genital arousal disorder (PGAD), and might be caused by nerve damage to the spine, a new study reveals. Stumped by the disorder for years, doctors at the Massachusetts General Hospital finally found a link between PGAD and damaged nerves in the spine that cause the sensation of arousal in human bodies, states the study published .