That explains all the grunting in the weight room so.
Dr. Debby Herbenick, a sex professor who writes for Men's Health, claims that research she carried out reveals that 10% of men and women orgasm while working out.
Herbenick says she started investigating the subject when her readers claimed to have experienced orgasms while doing hanging leg raises.
In the Corgasm Workout, her new book, she says that the phenomenon is caused by working out the abdominal muscles, and is more intense than a regular orgasm, but lasts for a shorter period of time.
For those wanting to achieve the feeling, it occurs when you fatigue your muscles and continue to exercise through the initial stages of excitement. Seems like a lot of effort to be honest, we know a much simpler way, but we won't go into that now. Google it yourself.