Dude that is fascinating. What I find interesting as well, nicotine can increase the dopamine by 200 percent. I dip myself I just looked up some stuff on what I dip. And chewing tobacco, can raise it by 3-400 percent. Which is insane, too many dopamine blockers can lead to stuttering, and side effects of parkinson's. Which I always had an idea those 2 were linked, some people with parkinson's stutter. I just saw you can get stuff OTC to help with your dopamine balances, but it did say best to speak with a doctor. I'm going to stop dipping. It will be very hard, but if that is part of the cause of high dopamine levels, and can improve my speech. I'll fucking quit right now........ Makes sense now. I tried quitting a few weeks back I went 4 days without it, and everyone kept saying I was speaking so much better. I didn't think nothing of it just because I have my good, and bad days. I'm definitely going to look into this more. Thank you so much for this info, this has me fascinated now.