It involves withdrawal from nicotine addiction and a change in habits. The nicotine in tobacco is as addictive as cocaine. It is because of this addiction that quitting can be so difficult. Nicotine is a poisonous chemical found in tobacco. It is the substance that produces many of the effects of tobacco.
Nicotine withdrawal occurs when the person takes in a lesser amount of nicotine.
To stop smoking, a person must deal with nicotine addiction. The individual also needs to change learned associations, or habits. The symptoms of nicotine withdrawal are actually good news. They are signs that the person's body is flushing out the harmful tobacco chemicals. They won't last long, usually from a few days to 2 to 3 weeks.