This document discusses the harmful chemicals found in cigarettes and the health risks of smoking. It lists several toxic and carcinogenic chemicals such as nicotine, benzopyrene, arsenic, cadmium, polonium, hydrogen cyanide, carbon monoxide, and methanol. These chemicals are linked to cancer, poisoning, and other serious health issues. The document emphasizes that smoking exposes people not only to the risks of addiction, but also to the dangerous effects of inhaling these chemicals. It encourages readers to consider the risks and make the right choice to not start smoking.