The psychology of addiction and the elements that contribute to substance abuse have been major research areas in the discipline of psychology. Understanding the psychological processes that underpin addiction, as well as identifying the many factors that lead to substance usage, is critical for effective early detection, intervention, and therapeutic techniques. This abstract summarizes the important results and developments in this field of research. The present research looks at the many facets of addiction, examining all interpersonal and environmental elements which impact its formation and maintenance. It includes a thorough review of the existing literature, including studies on genetics and heritability, adolescent risk factors, the influence of peer pressure, childhood trauma, co-occurring mental health disorders, cognitive processes, motivational factors, prevention strategies, neurobiology, and cultural influences.