Addiction has two components: chemical(i.e. nicotine) and psychological (i.e. the habit of the ritual). My mom recently switched to e-cigarettes, and she said

Addiction has two components: chemical(i.e. nicotine) and psychological (i.e. the habit of the ritual). My mom recently switched to e-cigarettes, and she said that she still occasionally gets the urge to smoke a real cigarette. But she said the urge is a lot weaker than when she used to go prolonged periods without smoking cigarettes, such as after a long plane ride.