A member asked:

How does smoking cigarettes cause some cancers?

A doctor has provided 1 answer

Tobacco: When burned produces a number of arylhydrocarbons, and other carcinogens that directly attack human dna leading to mutations. Some are repaired, others propagate over time, mean time, nicotine addicts. The more exposure, probabilistic risk increases for cancer, cardiovascular and lung disease. Evidence is overwhelming indisputable..

Answered 8/20/2013

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