Oh I had to quit drinking because of my blood pressure. I mean I still have drank, but its just been isolated beers. Alcohol inhibits nitrous release in the endothelium, causing blood vessels to tighten too much. Heart already has a hard time just beating harder in response to the low blood oxygen.
Heart disease is what alcoholics really have to worry about. That and coming off of heavy benders too fast, DT is deadly, often from its heart complications.
My blood pressure dropped a lot when i stopped drinking, well back into healthy ranges, and even lower than that.