The definition of recovery remains divided and subjective in drug rehabilitation, as there are no set standards for measuring recovery. The Betty Ford Institute defined recovery as achieving complete abstinence as well as personal well-being[21] while other studies have considered "near abstinence" as a definition.[22] The wide range of meanings has complicated the process of choosing rehabilitation programs.

This is an ongoing debate in the medical community, but it is generally agreed that there is no one cause for the development of addiction. According to the National Institute on Drug Abuse, contributing factors may include a genetic predisposition to develop addictive tendencies, an environment that is permissive of drug abuse, access to illicit substances, and certain developmental issues. The existence of a Dual Diagnosis is one of the biggest risk factors for the development of addiction. Heroin Withdrawal | First Week In