I used it to self-medicate for my ADHD for years. It calmed down all the noise in my head and allowed me to have one train of thought at a time. It also made me high, which was nice. I’m the end, it became a crutch for dealing with the hard aspects of life, and fucked with my brain chemistry a lot. I ended up a paranoid wreck, developed severe anxiety and stopped. Now I enjoy it occasionally but if I smoke too much it makes me feel depressed for days afterwards.
I have strictly instructed my family, including my wife, that if I ever develop alzheimers I want to be euthanized. If I am sufficiently lucid at the point of diagnosis I will have no problem overdosing on something and going out in peace.