From what I remember it helps reduce the risk of prostate cancer but something to keep in mind here is that as much as we have direct scientific knowledge on the chemical and physical aspects of how it can affect us we do not have enough for it’s psychological affect.

As long as you do it every now and again, that is healthy both physically and mentally. If you’re busting one out every day or twice I day I can’t say I think that will help your mental state.

Plus chemically, climaxing releases pain-killing and satisfaction hormones and chemicals so we feel relaxed, this could be a reason for why it kills motivation so choosing to not do it along with trying to be more productive each day will help.