As if I needed another reason to drink coffee.
It’s ok, me too. At home I’m a 4-6 cup a day drinker. On the go 2-3 Starbucks. I have a serious problem.
There has been a major shift in how addiction is understood in modern research, but you have it backwards- your perspective of chemical addiction or direct chemical mechanism being important is the old discredited concept, not the new one, which sees it as a psychological process that requires no direct chemical mechanism at all.
This chemical dependence is often the number one reason people cannot physically stop their psychological process. Potential effects from quitting include simply dying, or with less strong chemical dependence, feeling anxiety or generally ill.