Biological approach to addiction

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  • biological approach
    • Initiation
      • Initiation: Vink et al. - smoking is due to 44% genetic factors and 56% environmental factors
    • Maintenance
      • Nicotine - it's addictive nature keeps the behaviour going.
    • Relapse: Xian et al. - 54% of the risk of quit failure is attributed to genetic inheritance.
  • Nicotine causes the release of dopamine and therefore the smoker will want to repeat the behaviour (for the pleasure).


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