Addiction and dependency

Nicotine has a very highly addictive and leads quickly into psychological and physical dependence (WHO). The body adapts very quickly to the effects of nicotine. To achieve the long term, the same pleasant effect to be consumed more. Once the body is no longer fed nicotine, decreases the amount of released dopamine and norepinephrine in the brain. Withdrawal symptoms are the result of: * agitation * anxiety * sleep disorders * difficulty concentrating * Aggressiveness