CNN Sanjay Gupta MD October 19, 2013 20:52:00
>> well, theres two components of that. certainly our ability to operate executive control and make choices of purr sufing goals like employment and the long-term relationship over drugs of abuse or overeating is very essential. but very new research is finding that theres individual differences in how quickly we learn to associate cues with reward from food or drugs and the people who rapidly learn these cues for reward, theyre the ones that get sucked into the habit much more than other people...
Source: archive.org