Cigarette smoke contains over 4000 substances which adversely affect good health. A pack per day smoker, puffs more than 70,000 times a year. An estimated 430,000 premature deaths occur each year due to cigarette smoking. Additionally nicotine is addictive.
Permanent damage occurs in the blood vessels, heart and lung.
Cigarette smoking is the single most important cause of cancer. Statements like this show a pathetic lack of insight into the prolonged suffering which is the rule rather than the exception with tobacco induced illnesses.