Jennifer Landa, M.D., a specialist in hormone therapy, has said masturbating might strengthen the body's natural defense forces.

"Masturbation can produce the right environment for a strengthened immune system," Landa told Men's Health.

Men's Health also cited a 2004 study that showed men had more white blood cells 45 minutes after they had a solo orgasm. For those who don't know, white blood cells are part of the body's immune system that help fight infection and other diseases.

According to the study by the Department of Medical Psychology, University Clinic of Essen, Germany, "these findings demonstrate that components of the innate immune system are activated by sexual arousal and orgasm."

Touching oneself might not totally prevent infection, but orgasms generally help people relax and elevate mood that is key to a healthy immune system.

One important thing to add - good orgasm (during real sex is better!) is very beneficial for tiny blood vessels, as high arousal and release run multiple cycles of expansion and contraction. Also high tension and quiver orgasm is very good for muscle tone. Multiorgasmic people are much more healthy, especially if they have office job and not enough physical training.