I've been thinking a lot about addiction lately. My takeaway from David Kessler's The End of Overeating is that habits are based on our wiring and that is based on evolution: we don't have to think about every single thing we do. The behaviors that led to some kind of reward in the past are the ones that become established as habits. So nerve networks are formed to convey this same information to our brain, muscles, sense, etc. over and over like an auto-repeat function. I understand that gave us a survival advantage over the millennia.Then I read in Robert Lustig's Fat Chance that the love of sweets is basically universal. He writes that sugar stimulates a pleasure center in the brain that releases dopamine that causes the sensation of pleasure. He goes on to say that this evolved because sugar is a quick source of energy = survival. The pleasure led to craving that drove humans to seek it more, and that all conferred a survival advantage. Same with sex re perpetuating the species.
These ideas make sense to me, the nerve pathways of habits to make us function more efficiently and pleasure center driving us to like and seek that which helps us survive. And this all took eons to evolve. It can explain why so many are susceptible to addiction--part of our basic survival-driven wiring.
So my question: Is ANYONE out there addicted to healthy things? I get pleasure from exercise, for example, but am in no way addicted to it.



We're never very long without bananas in this house.