What do we know about cigarette smoking and asbestos?

More than 4,000 toxic chemicals are found in cigarettes smoke. Of these, more than 60 are known or probable causes of cancer in humans, such as benzene, cadmium, and cyanide.

Tobacco use is the leading preventable cause of death in the United States. Each year, cigarette smoking causes approximately 440,000 deaths in the United States, primarily due to cancer, hearth disease, and stroke.

That is nearly one of every five deaths per year. Even if you do not smoke cigarettes, you may be exposed to cigarette smoke in your home or work environment.