LONDON, ENGLAND — Britain’s National Health Service has raised a bit of controversy by declaring vigorous sexual activity can lower the risk of heart attack, fight cancer, decrease wrinkles, strengthen bones and make hair shiny.According to NHSDirect.com, endorphins released by orgasm stimulate the immune system. Although endorphins — which are the “feel good” chemicals responsible for “runner’s high” — can be triggered by almost any vigorous physical exercise, a good between-the-sheets romp may be the most pleasurable way for many people to activate them, the website noted.

Endorphins also “make your hair shine and your skin smooth,” the article declared.

In addition, extra estrogen and testosterone released during orgasm “will keep your bones and muscles healthy, leaving you feeling fabulous inside and out,” according to the NHS.

“Forget about jogging round the block or struggling with sit-ups,” the NHS website recommends. “Sex uses every muscle group, gets the heart and lungs working hard and burns about 300 calories an hour. If you’re worried about wrinkles, orgasms even help prevent frown lines from deepening.”

Although the NHS told the Guardian newspaper its recommendations are “backed by science and clinical evidence,” sex researchers dispute the claim.

“Yes, there is evidence that sex has benefits for mental wellbeing, but to say there is a link with reduced risk of heart disease and cancer is taking the argument too far,” Dr. Melissa Sayer told the Guardian. However, she added, “It’s good to see the NHS are promoting sexual wellbeing.”

The NHS stands by its assertions.