This document discusses the negative health effects of smoking cigarettes. It lists several cancers that are linked to smoking, such as lung cancer, as well as other health conditions like heart disease, strokes, and reduced fertility. It also notes that smoking reduces life expectancy and highlights the substantial financial costs of the smoking habit over various time periods. The document encourages smokers to quit for the sake of their health, noting that their lives could be extended by 14 years by stopping smoking.