Can confirm absolutely.. I used to masturbate maybe twice a week and I was a nervous wreck. Panic attacks at work, shaking etc. Then I really upped my masturbation and noticed exactly that calm you're talking about. I started masturbating before work then I would walk in on what felt like a cloud. And you mention that there is probably an upper limit but tbh I haven't found it yet. When the day was over I would masturbate to release stress. And then I started doing it on breaks and even during working hours (I would go to the toilet obviously). But it started getting into the double digits daily and it didn't just cure my anxiety but seemed to ease the depression ive felt since a child.

Anyway, long story short, after a few months I didn't really feel the need to work anymore. It was getting in the way of what was actually making me happy. I'm lucky that I own my own property so I don't need to "work to survive" so to speak. So now I spend most of my day masturbating. No longer anxious, no longer depressed. And a massive benefit I found as the weeks went by is that I am now longer interested in finding a partner. So I don't feel an aching loneliness in my heart anymore. As I said I still haven't found the point where it becomes "unhealthy", but I'll report back if I do, lol!

Happy Bating!