It is more addictive than heroin. In my opinion, it should be a controlled substance, and should not be sold at your local gas station. Smoking causes cancer and is the number one cause of heart disease and emphysema, in this country. In fact, smoking is the main cause of preventable death in Canada. Women who smoke die nearly 16 years earlier than nonsmokers.
Smoking increases the risk of cervical cancer.
Smoking is also associated with cancers of the mouth, throat, pancreas, and bladder.