a major health risk of chewing tobacco is Side Effects, Risks, Tips on Quitting Tobacco doesn't damage your health

Since the publication of the 1964 Surgeon Generals report, which characterized cigarette smoking as a health hazard of sufficient importance in the United States to warrant appropriate remedial action, and other convincing scientific evidence, the industry had been under an ominous legal cloud, in that it was open to liability lawsuits brought by the estates of smokers who had died of lung cancer and whose survivors could attempt to prove to the satisfaction of juries that the deceased had originally been lured into habitually smoking a particular brand by such advertising claims as Not a Cough in a Carload. Indeed, a number of liability suits had been brought in the fifties and sixties, and, although none of these had ultimately been decided against the cigarette-company defendants, the threat that some landmark decision might be rendered in a damage suit on behalf of smokers who had contracted lung cancer after habitually smoking a particular brand not only worried the, tobacco-company lawyers but also tended to have an inhibiting effect on the quotations of tobacco-company stocks on Wall

When that failed, the consortium devised a new strategy, bringing its fight to each major league city, with San Francisco the first stop

HTPs are designed to heat tobacco instead of burning it, generating as a result an aerosol with significantly lower levels of harmful chemicals compared with cigarette smoke

For now, not enough data exists on the safety of e-cigarettes, how the health effects compare to traditional cigarettes, and if they are helpful for people trying to quit smoking