high levels of male sex hormones, or androgens, may increase a man's risk of prostate cancer
. But different studies of this question, done in different ways, have reached different conclusions. Frequent masturbation during men's 20s and 30s increased their risk of prostate cancer. But men in their 50s who masturbated frequently had decreased risk. So it is ok to masturbate twice a week both for your heart and your prostate.