Drugs are chemical substances that affect the normal functioning of the body and brain. Common drugs include cigarettes, alcohol, marijuana, heroin, cocaine, magic mushrooms, and LSD. People take drugs due to peer pressure, to escape problems, out of curiosity, or just to feel good. However, taking drugs can negatively impact a person's health, education, relationships, career, and happiness due to side effects. To avoid drugs and addiction, one should not be afraid to say no, resist peer pressure, connect with parents, find healthy ways to deal with stress, maintain a happy lifestyle, and seek counseling if needed.