The document discusses smoking prevention and the negative health impacts of smoking. It notes that tobacco use often begins in adolescence, with 1/3 of smokers starting before age 14. Smoking is a leading preventable cause of death worldwide, causing over 440,000 deaths per year in the US alone. The top causes of smoking-related death are lung cancer, heart disease, and chronic lung disease. Smoking increases the risk of numerous cancers and cardiovascular/respiratory diseases. The goal of the information presented is to educate teens and the public about the serious health risks of tobacco use and encourage smoking prevention and cessation efforts.