Tobacco smoking

View How Smoking Affects Your Looks and Life Slideshow Pictures

Medical Definition of Tobacco smoking

Tobacco smoking: The direct inhalation of tobacco smoke, the basis of major health hazards.

Long known to cause cancer in humans, tobacco smoking is generally held to be the leading preventable cause of cancer in developed countries. Tobacco smoking was formally classified as a "known human carcinogen" by the US government in 2000.


Quick Guide25 Effects of Smoking on Your Looks and Life

25 Effects of Smoking on Your Looks and Life

Subscribe to MedicineNet's Men's Health Newsletter

By clicking Submit, I agree to the MedicineNet's Terms & Conditions & Privacy Policy and understand that I may opt out of MedicineNet's subscriptions at any time.

Reviewed on 5/13/2016

Health Solutions From Our Sponsors