Some web research has yielded studies that smoking about ten
cigarettes per day increases the risk of fatal lung cancer by 30-80%.
The risk of fatal heart disease increases by a similar ratio.
Like so many, these statistics are just raw data, with no causality (or casualty) necessarily implied. A simple example is the fact that these studies don't consider the rest of these smokers' lifestyles; it's not unlikely that people who care little enough for their health, and smoke till they're 80 have other things contributing to their illness.

This package warning is another example of wishy-washy doublethinking Canadian government propaganda.