Smoking is widely recognized to have negative effects on health and is the single most preventable cause of ill health and death. The average smoker has a life expectancy that is eight years shorter than an average non-smoker. Smoking is related to many diseases and conditions, including heart problems and various cancers. Smoking also has serious health risks for non-smokers that are exposed to secondhand smoke. The proportion of the population that currently smokes is a measure of how healthy Surrey residents are. The City aims to see a downward trend, with levels continuing to be below the BC average. Data source: Statistics Canada.