In the cigarettes or tobacco, nicotine is the substance in which the nervous system affect the brain have narcotic effect is very high. Smoking causes the brain and central nervous system is very fast, nicotine is the substance of approximately 6 seconds faster than other drugs, has been much faster than injection of coral rose on blood vessel. More
When the brain and the central nervous system receives a message quickly and easily, nicotine content of cigarettes addictive, with satisfaction. Cigarette nicotine levels would be in the blood, lower but where smoking is part of the installation or a familiar behaviour towards smoking habits, familiar as one period. Make it difficult to quit, but it was too difficult, no one being able to overcome if we want to make ourselves.