number of carcinogens in cigarettes Cancer - How Tobacco Smoke Causes Disease: The Biology and Behavioral Basis for Smoking-Attributable Disease Smoking increases the risk of

Regardless of the method or frequency of smoking, the inhalation of tobacco smoke exposes the body to a wide range of toxic chemicals and carcinogens, leading to serious health consequences

They also say that a year after quitting, the risk of heart attack will have halved compared with a smoker's and that after ten years, the risk of death from lung cancer will have halved compared with that of a smoker.

The first filter eliminates up to 25% of nicotine and tars

1 2 1999 advertisement, in the collection of Stanford Research Into the Impact of Tobacco Advertising Archived 6 September 2018 at the Wayback Machine 1 2 3 "Philip Morris Removes Slogan From Ads in Second Attempt Responding to Critics - WSJ"