If masturbating is fun and harmless, why are there some bad vibes about it?

Masturbation is good. As a physician, my job is to take morality out of the equation when discussing health. I believe in getting the facts, applying the truth to one's spiritual and physical life. Masturbation is not unhealthy. It is a normal part of almost all of the human sexual experience in every culture, race, religion and gender. There is really nothing inertly unhealthy about masturbation.