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About Addiction

When substance use becomes a problem

Problematic substance use (Substance Abuse)

  • Short term pleasure is a more powerful reinforcer than mid or long term consequences.
  • Substance use continues even after it has caused significant social, occupational, legal, psychological and physical problems.
  • Any substance or experience that produces activation of midbrain dopamine circuitry, producing rapid euphoria, may become problematic

Addiction (Dependence)

Progression to dependence

  • 1 in 7 who have ever tried alcohol become dependent
  • 1 in 3 for nicotine
  • 1 in 4 for heroin
  • 1 in 5 for cocaine
  • 1 in 10 for cannabis

J.C. Anthony, L.A. Warner, R.C. Kessler, from journal article


> Read the whole article here