How many calories do you approximately burn during 20 minutes of normal, sexual activity?

How many calories do you approximately burn during 20 minutes of normal, sexual activity?
Around 100

Explanation
Many people will probably agree that sex is one of the most fun and safe sports around - as long as you remember the condom. It gets the pulse up and both sculpts and stretches most of the body's muscles - all in all a fun alternative to the gym. A woman (60 kg) and a man (80 kg) will each burn around 100 calories during 20 minutes of intercourse if the average pulse is around 100 beats/minute. If the puls is at 140 beats/minute, they will burn almost the double.

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Answer time 0s (0s). 0% have previously answered correct on this question. The question was created 2011-12-29.

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