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Traditionally, addiction would refer to a person's physical and psychological dependence on a mind altering substance, such as alcohol, tobacco, or drugs. More recently, mental health care providers have expanded the definition to include any substance or behavior which a person engages in repeatedly, despite negative consequences to their health, social life, or personal relationships.
The American Society of Addiction Medicine expands the definition further, stating that addiction is a “primary, chronic disease of brain reward...