The document discusses the harms of smoking cigarettes. It notes that smoking can shorten your life and lead to addiction as your body gets used to nicotine. Once addicted, quitting smoking is both mentally and physically difficult. Cigarettes contain over 4,000 chemicals, including 69 that cause cancer, and smoking increases risks of various health issues like cancer, heart disease, and lung problems. While the tobacco industry and governments profit from cigarette sales taxes, the real costs are to individuals' health and the healthcare system. The document also discusses reasons why people start smoking, stereotypes around smoking, laws around smoking, and ways to quit.