Addiction is a complex condition characterized by compulsive drug seeking, use, and relapse despite harmful consequences. It can be a result of genetic, environmental, and developmental factors that interact with each other. Addiction may involve substances such as drugs, alcohol, or nicotine, as well as activities like gambling or gaming. Research in the field of addiction aims to understand the underlying mechanisms, risk factors, prevention strategies, and effective treatment options for individuals struggling with addiction. This includes studying brain chemistry, behavior, and social factors that contribute to addictive behaviors.