DAMIEN LOVEGROVE / SCIENCE PHOTO LIBRARY DAMIEN LOVEGROVE / SCIENCE PHOTO LIBRARY
Cigarette addiction. Woman reaching for a cigarette. Smoking tobacco cigarettes is addictive due to the nerve stimulant nicotine. Nicotine patches and inhalers have been developed to provide the body with an alternative source of nicotine if a smoker decides to stop smoking. Tar in the tobacco smoke will, over a period of time, stain the skin of a smoker's hand. It produces chronic irritation of the respiratory system and causes lung cancer. Tobacco smoking has also been linked with a greater risk of chronic bronchitis and coronary heart disease.
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