Tobacco Allergy Symptoms Skin

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Alternative Names

Secondhand smoke; Cigarette smoking; Tobacco cessation; Smoking and smokeless tobacco


Tobacco is a plant grown for its leaves, which are smoked, chewed, or sniffed for a variety of effects.

  • It is considered an addictive substance because it contains the chemical nicotine.
  • Tobacco also contains more than 19 known cancer-causing chemicals (most are collectively known as "tar") and more than 4,000 other chemicals.

Most smokers in the United States would like to...

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