How powerful is nicotine addiction?
About 70% of smokers say they want to quit and about half try to quit each year, but only 4% to 7% succeed without help. This is because smokers not only become physically dependent on nicotine; there is a strong emotional (psychological) dependence. This is what leads to relapse after quitting. The smoker may link smoking with social and many other activities. Smokers also may use cigarettes to help manage unpleasant feelings and emotions, which can become a problem for some smokers when they try to quit. All of these factors make smoking a hard habit to break.