Nicotine is a substance found in tobacco. It is found in all tobacco products such as: cigarettes, pipe, tobacco, chewing tobacco, and cigars.
When a person smokes a tobacco product, they inhale the smoke which contains nicotine as well as over 500 chemicals.
Nicotine is the drug in tobacco that causes addiction. When a user is addicted to nicotine, they feel as if they need nicotine in order to function normally.
The smoke from tobacco also contains tar which is damaging to the mouth, throat, and lungs.
Nicotine reaches the brain within 10 seconds after intake.
Nicotine is a stimulant to the brain and the central nervous system.