Hi doctor, i m 23yrs old and go to gym, i want to know that is masturbation reduce size of my biceps or body? as my gym trainer ask not to masturbate?

Healthy Masturbation: No. I do not see any medical or scientific reason for the trainer's recommendation. Masturbation is a normal human experience. Plain and simple frequent and regular masturbation is not only normal it can be a sign of good physical and mental health. We do know that those gentlemen who ejaculate on a frequent basis have less prostate cancer. One is never too old to have a healthy sexuality.