According to a report from Live Science on Monday, a new study finds that, in young people, sex burns an average of 4.2 calories a minute for men and 3.1 calories a minute for women.
Most sex sessions lasted around 25 minutes (with some as short as 10 minutes, others almost reaching an hour), with men expending more energy than women. On average, men burned 101 calories when having sex, and women burned 69 calories. Still, that didn't beat the calorie burn when jogging: men burned 276 calories, or 9.2 per minute, while women burned 213 calories, or 7.1 per minute.
Famed sex researchers William Masters and Virginia Johnson observed couples having sex and noted that heart rates reached as high as 180 beats per minute. For comparison, between 85 and 119 beats per minute count as moderate-intensity exercise for a 50-year-old.
In 1984, a study of 10 intrepid married couples published in the journal Archives of Internal Medicine used heart rate and blood pressure monitoring, a fast-responding oxygen gas analyzer and electrocardiography to determine that, for men, self-stimulation increased heart rate by 37 percent. Man-on-top sex increased it by 51 percent.
Sex may also be a better way to burn calories than housework, though more research is needed: A study released in October in the journal BMC Public Health found that people overestimated how many calories they were burning while sweeping floors and vacuuming.
Emily Sutherlin is also the Pregnancy Examiner.
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