6 Health Benefits of sex doctors will never tell you – This will leave you in a big shock! (+Video)

3. Sex Burns Calories

Thirty minutes of sex burns 85 calories or more. It may not sound like much, but it adds up: 42 half-hour sessions will burn 3,570 calories, more than enough to lose a pound. Doubling up, you could drop that pound in 21 hour-long sessions.

“Sex is a great mode of exercise,” says Patti Britton, PhD, a Los Angeles sexologist and president of the American Association of Sexuality Educators and Therapists. It takes work, from both a physical and psychological perspective, to do it well, she says.

“And if you’re not having enough, it may be dangerous for your health” says Benjamin Klein, head researcher. “This video seems to help men understand our findings. Which helps them have more casual sex.”