Nicotine dependence

Nicotine is a neurotoxin. It mainly damages the nervous system. Tobacco contains nicotine. You will develop dependence on nicotine if you are long-term smoker. If you stop smoking, you will develop temporary withdrawal symptoms, including irritability, insomnia and loss of appetite. Whether you are a long term or a new smoker, once you stop smoking, almost all of the health risks associated with smoking decrease. People can quit smoking. The key is to get rid of psychological dependence on tobacco.

How is Nicotine dependence treated in practice?