Masturbation is...

good for you?

Supposedly it is good for your heart, but hey, also good for your mind.

Supposedly helps relieve tension, depression, & all that kind of stuff, if done regularly and often.

For more info visit:
Gaydemon Dicktionary.

Now, if only we can solve the issue of getting hairy palms and going blind from masturbating, we'd be set. [so much for old wive's tale's, huh?]

Masturbation is about self stimulation, to achieve an orgasm.

It can take many forms, or methods, but bottom line is that it just makes you feel damn good, exhausted, but damn good none the less.