I am 16, and I have masturbated for at least a year. Only since a few months has my tendency to do so increased from whatever (a few days in between) to just about every night. I am an active male, I go to the gym at least a few days a week, take amoxicillin (acne pill prescription) and protein supplements, and feel my diet is well. But down to science, will masturbation harm my sexual efficiency? Lately, I have been feeling that it continued to grow quicker to climax, and worry that my penis and testes are becoming smaller in size. Is this a legitimate worry? I don't want this part of me to deteriorate in latter years.
P.S. I would appreciate it if replies were limited to scientific fact/theory. I know that it is "healthy" psychologically to jerk off once a while, and that it's a sin. Thanks.
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