Speaking of carcinogens. People *****, *****, then ***** some more about cigarette smoke, yet ignore everyday life that throws carcinogens (literally) down your throat without cigarette smoke being involved. There contains multiple heavy metals in your television and computer, of which traces find their way into your body, and guess what, most of those heavy metals have the potential to cause cancer. Do you have an air conditioner? Guess what, the refrigerant is a carcinogen, and don't fool yourself into believing that said refrigerant is forever contained within the coils of air conditioner. While we're talking refrigeration: Supermarket coolers/freezers, your own refrigerator, your car/city bus/other transit air conditioner, public buildings, etc. Do you have a furnace? Does it burn fuel oil or natural gas? Yes, even though hydrocarbons of the light variety are organic chemicals(technically, all hydrocarbons are organic, but what the hey), the fuels contain sulfides that can, you guessed it, cause cancer. Been in an old building(built before 1970) in your life? Lead paint and asbestos, both carcinogens, are prevalent in old buildings. Vehicle exhaust(if you are viewing this, you cannot escape the fumes from these nasty machines) is full of carcinogens. Unlike many of these things, tobacco is (mostly) a natural substance that releases a few toxins when burned(and everything, when burned releases toxins, including your own body). Please give this a ******* rest.