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In recent years, awareness and concern has grown within the psychological and medical communities regarding “behavioral addictions”: these are defined as the compulsive performance of otherwise normal everyday activities such as sex, gambling, use of the Internet and online video games, and shopping. This chapter examines 3 such addictive disorders: gambling disorder, compulsive buying disorder (CBD), and Internet gaming disorder (IGD), exploring their definitions, prevalence, diagnoses, consequences, and treatment. All 3 disorders share similar neurobiological mechanisms, acting on the pleasure centers of the brain and having potentially severe social, mental, and psychological repercussions, including loss of interest in life and withdrawal symptoms as intense as those felt by substance abusers when quitting drugs. Certain pharmaceuticals, CBT, and treatment principles similar to those followed by substance abusers, as well as various non-traditional modalities such as acupuncture and yoga, all have shown promise in treating these disorders.