Sex makes people healthy, cheerful, strong, beautiful and sleepy

In my continuing effort of self-education and independent study for my Doctorate in Human Sexuality, I came across this Russian article about a sex study. Nothing truely novel here, but a good read, nevertheless. From the article:

One may say that a bed is the best equipment for physical exercises that man has ever designed. The pulse rate of a sexually excited individual increases from 70 to 150 beats per minute, which is comparable to muscle efforts of a weight-lifter. Only one sexual intercourse burns off the same amount of calories that a person loses running on a treadmill for 15 minutes. Needless to say that the first option is much more pleasant than the second one. Thirty minutes of sex kill about 200 calories. In other words, daily sex can take away 500 grams of your weight in a week.

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