answer:Humans are creatures of pleasure and it doesn’t take much to rewire the brain towards addictive predisposistion by repetitive “feeding” of pleasure censors in the brain. It also has to do with certain developmental stages, oral, anal, phallic that some do not navigate properly in early life as well as unhealed emotional traumas that lend themselves to addictive consumption, be it drugs, food, alcohol, manic exercise, compulsive sexuality, the list is endless and most have combo plates and recycle one addictive behavior only to fall into another. With diligence, self awareness and practice we can rewire these neuropathways towards a healthier and more integrated model of behaviorial modification, but, for most it will be a lifelong journey fraught with relapse. I’m in the orally fixated category myself, I need to pay close attention to my hedonistic side, partly due to my innate temprament and the “feeding” of those pleasure centers. haha