What is Substance Use Disorder?

Substance Use Disorder (SUD) is defined by the Substance Abuse and Mental Health Services Administration (SAMHSA) as a chronic but treatable brain disease. It is characterized by a pattern of compulsive substance use despite harmful consequences, leading to impaired control over use and risky behaviors.

According to the DSM-5 criteria used by healthcare professionals like those at Recovery Cove, SUD involves 11 specific symptoms that assess patterns of behavior. These can range from mild (meeting 2-3 criteria) to severe (6 or more criteria). Common signs include:

  • Tolerance: Needing larger amounts or using over longer periods than intended to achieve the same effect.
  • Withdrawal: Experiencing physical or emotional discomfort when stopping use.
  • Failed Quit Attempts: Repeatedly trying and failing to cut down or stop using the substance.
  • Cravings: Intense urges to use that interfere with daily life.
  • Neglecting Responsibilities: Giving up important social, occupational, or recreational activities due to substance use.

SUD is a widespread condition, with 2024 national survey data indicating that approximately 7.6 percent of U.S. adults experienced a substance use disorder in the past year, frequently involving alcohol, illicit drugs, or opioids.


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