Addiction is a condition characterized by compulsive engagement in rewarding stimuli, despite the negative consequences it may have on an individual's physical, mental, social or financial health. Addiction can refer to substance addiction, such as drugs or alcohol, or behavioral addiction, such as gambling or gaming. It is often associated with changes in the brain's circuitry, including increased sensitivity to reward and decreased impulse control. People with addiction may experience intense cravings for the substance or behavior, and may continue to engage in it despite negative consequences, such as relationship problems, financial difficulties, or health issues. Addiction is a complex and chronic condition that can be difficult to treat, often requiring a combination of behavioral therapy, medication, and support from a community of health professionals and peers.

CBT, or Cognitive Behavioral Therapy, is a widely-used approach to the treatment of addiction. CBT helps individuals with addiction to identify the negative thoughts, emotions, and behaviors that trigger drug or alcohol abuse and to develop effective coping strategies.