The document discusses the harmful effects of various illegal drugs, including inhalants, marijuana, hallucinogens, stimulants, narcotics, and steroid use. It describes how the illegal use of these substances can harm a person's physical health by damaging vital organs, increase risk of diseases and infections, and cause immediate death in some cases. It also discusses how illegal drug use can harm mental health by impairing judgment and decision making, increasing risk of accidents, violence and criminal behavior.