of course it does. Don’t let anyone fool you into believing it doesn’t. It’s sad to say this but when it comes to sexuality I am extremely skeptical about what doctors have to say. we live in a generation where there are more than two genders, a man can give birth to a baby, where people can identify as wolfs etc. So when it comes to masturbation i find it very hard not to believe that the researchers have skewed the data to promote this shit. Don’t get me wrong if you do it once a month or even once a week, the effects you feel and experience will be minimal and don’t need you to be concerned. The problem is if you get addicted to porn and start do it more than once a day. First the porn is gonna fuck your dopamine system up and make you get addicted to this shit. The main type of individuals that get addicted are those who are already suffering from some like of mental problems like anxiety, light depression, inferiority complex, bad childhood. Since you masturbate for such frequency it is going to take up all of your energy to to anything else in life that has meaning. At this point you are an empty shell of what you were. The consequences is that you will sabotage your social life and lead a sedentary life. this kind of life easily affect your health like vitamin d deficiency and zinc deficiency. lack of these vitamins can cause you to develop abnormal vertebrae if you are in a genetic risk of it. Even considering this as a exception i would believe that you wouldn’t want to be turned into an anecdote either. either way you are fucked. do you want to be made an example out of? So don’t do it in excess.