Masturbation is a classic example of the double-edged sword. Many men who masturbate an hour or two before they expect to have sex find they have less of a problem with premature ejaculation. Then again, men who masturbate a lot can induce premature ejaculation, because often they are masturbating with the aim of having an orgasm quickly. This “quick sex” dynamic can carry over into sex with a partner. Masturbation can be a positive contributor to an enjoyable sex life, but like many things in life, it’s not a “more is better” situation.