[tropdrop]

I've tried nicotine (in cigarettes, cigars, and vape-based products), but for some reason, it never became this light switch in my head. However, as soon as you started describing this, I immediately thought of my relationship with food, which is not a healthy one.

I maintain a healthy weight (now) and exercise, but this is a daily struggle. Since about the age of 12, certain peculiar foods inexplicably got wired in my head with pleasure, and the way you talk about this light switch is spot on.

I wonder if it has more to do with having an "addiction gene" of some sort – could some of us fall prey to addictive behaviors more than others? If so, why?