Nicotine

Nicotine is a drug found naturally in tobacco.  It is highly addictive and over time your body becomes both physically and psychologically dependent on nicotine.  When smoke is inhaled, nicotine is carried deep into the lungs, where it is absorbed quickly into the bloodstream and carried throughout the body.  Nicotine produces pleasant feelings that make you want to smoke more. 

Nicotine Withdrawal

When smokers try to cut back or quit, the absence of nicotine leads to withdrawal symptoms.  Those symptoms may include any of the following:

• Dizziness
• Depression
• Feelings of frustration and anger
• Sleep disturbances
• Trouble concentrating
• Restlessness
• Headache
• Increased appetite