Nicotine dependence

Nicotine dependence
Addiction is characterized by compulsive repeated use of a substance despite physical or psychological consequences.
Nicotine dependence
Tobacco in any form, creates a powerful addiction, both psychologically and physically. The agent responsible for this addiction is nicotine present in tobacco leaves. In a normal cigarette, nicotine is found in the amount of 1 mg to 2 mg.

All people who smoke are likely to develop nicotine dependence. Addiction often occurs during adolescence and can occur within days or weeks after the smoking of cigarettes first.
Chemical and biological transformations train nicotine in the brain. Although less important than those caused by heroin and cocaine, the psychoactive effects creates an addiction as strong.
Nicotine dependence
Thus, although 70% of smokers want to quit this vice, and 35% of them try to quit each year, fewer than 5% succeed because nicotine addiction is strong.
Nicotine dependence
According to a study conducted in 1994, only 50% of smokers are victims of a heart attack, the doctor advised to stop smoking, they managed to do so. In fact, 50% of hardcore smokers die of tobacco-related diseases.
Nicotine is extremely toxic when consumed in large quantities, and most people malaise presents a first cigarette. These effects disappear quickly. Over time, the body gets used to nicotine and drug effects attenuates, so smokers consume a greater amount of nicotine.