Nicotine is an addictive drug and a natural ingredient found in the tobacco plant. It is an alkaloid that contains chemicals such as carbon, hydrogen and nitrogen toxic odorless. Many products, including cigarettes, cigars, tobacco, pipe tobacco and nicotine replacement products, use nicotine. This substance causes changes in the brain that induce a State of euphoric mood for smokers. When a person smokes and inhaled nicotine, a chemical in the brain called dopamine is released, producing feelings of pleasure and satisfaction. These good sensations make the smoker want to use it more and more.

However, when the smoker has not had a regular arrangement of nicotine nicotine is absent, the unpleasant withdrawal symptoms are experienced. Nicotine dependence is based on factors, psychological and physical. For example, the smoker develops certain typical behaviors associated to smoking. Generally, a cigarette is lit after eating, while drunk one Cup of coffee or alcohol, in stressful situations or when another smoker is smoking. Acting as a stimulant, the addictive characteristics of nicotine definitely affect mood and performance. Nicotine has been said to be even more addictive than alcohol, heroin and cocaine, and it can take only four cigarettes to develop an attachment of lifetime.

Symptoms of nicotine addiction * smoking increasingly * urgent need to smoke despite the efforts to reduce it * tolerance to nicotine decreases, thus making the smoker to increase smoking to derive the same effect * in withdrawal symptoms when trying to stop * personal and professional life is affected due to smoking, e. g. your partner may tire of which you always go outside for a cigarette or you leave hurried work in a break smoking * Excessive amount of time passed in the obsession with the acquisition, purchase and use of cigarettes and tobacco * continue smoking even when they have been diagnosed with an ailment that makes smoking even more dangerous, such as an attack heart or lung emphysema symptoms of nicotine withdrawal include: * nervousness and anxiety * difficulty concentrating * headaches * weight gain * insomnia * decreased heart rate * irritability and depression * mood swings * improves in taste and smell diagnosis of addiction to nicotine is diagnosed nicotine addiction based on the observation of certain patterns of behavior exhibited by the smoker.