How Many Calories Does an Orgasm Burn?

Having an orgasm is a powerful, full-body experience. Your muscles contract, your breath quickens, and you might even break a sweat.

Which is why you may have wondered at one point or another: How many calories does an orgasm burn? Your heart's pumping like you're running a marathon and you're clenching your core like you're busting out an ab workout, so it's got to be something, right?

Determined to figure it out, I put on my Sherlock Holmes cap and reached out to Dr. Uchenna Ossai, a pelvic health physical therapist and sex educator for LifeStyles Condoms. Here's what she had to say.

What to Do When She Asks You How Many Women You’ve Slept With

Could your sexual history make or break your relationship? That’s what a new (unscientific) survey conducted by Superdrug Online Doctor, an online pharmacy in the UK, suggests.

In the survey of more than 2,000 Europeans and Americans, 30 percent of the respondents said they’d be at least somewhat likely to end a relationship if they found out their partner had too many previous sexual partners.

What the heck is “too many”?

On average, the women surveyed said they’d consider anyone who had slept with 15 or more partners as “too promiscuous.” Men set the limit at 14 partners.

How Many Long Runs Should I Do Before a Marathon?

It seems like common sense that to prepare for a marathon—an event that includes a heck of a lot of running—your training should also include a heck of a lot of running. That’s why marathon preparation dogma preaches that you need to do one long, 12 to 26 mile run each week.

The problem: That often puts too much mileage on your body, says Mark Conover, director of the cross-country and track-and-field programs at California Polytechnic State University.

“The key is to get to the starting line fresh,” says Conover. “You don’t want to arrive at the marathon as damaged goods.”