Did you know that an average-sized man burns about 65 calories during a half-hour of vigorous sex? Not all that impressive.
But if he were to talk on the phone during sex, the total hits 100 calories. Watch TV, talk on the phone and have sex at the same time then he's burned a total of 150 calories in that half-hour. Talk about interval training!
There are more sensible uses for calorie calculators, which give ballpark estimates for various activities based on the exerciser's weight and time spent -- sports such as golf, skating, karate and skateboarding, and everyday tasks such as cleaning house and shopping.
Here are a couple of online calorie-burn calculators to check out:
Healthy Weight Forum (70 activities)
Health Status (115 activities)
Internet Fitness (70 activities)
Your mileage will vary. A lot.
As for that sex estimate, let Cosmo U.K. show you ladies how to "Have 400 Calorie Sex."
More from the fitness blog: "How to have a T-errific Sex Life"
Back in April, we looked at the health benefits of sex.


Yes, but it's rude to watch TV while during sex. I'd rather watch my girl and go with the Ipod Nano instead. How many calories is that one?
Posted by: richard mcenroe | October 18, 2007 at 05:42 PM
How about an article where you talk about sex exercises -- seriously. There must be good ones for the abs, arms, thighs, etc. A good workout and some or all of thse things get a bit sore.
Posted by: Nazzy | April 22, 2008 at 04:59 PM