sex does the body good?

could this be true, does sex really do the body good? studies say sex is good for tension release and exercise. according to an article i found on google It is much easier for a woman to learn how to love herself, if she has a man, who desires and worships her. "also It is generally believed that human beings have sex either for pleasure or reproduction. However, the number of people driven with these motivations has been reducing steadily during the recent years. The majority of humans use sex as the most pleasant and available remedy for a whole bouquet of problems."