Why do some people repeatedley engage in harmful addictive behaviours?

Why do some people repeatedley engage in harmful addictive behaviours? critically discuss from psychobiological, individual differences and social psychology perspectives, and integrate the three perspectives.

Psychobiological perspective: relate to brain reward systems, dopamine, positive reinforcement theories, negative reinforcement theories, response inhibition.
Social psychology: Interpersonal (Family, peers), Community, society, family background, availability, acceptability, self efficacy, identification, social modelling, identity and addiction.
Individual differences: Personality traits, sensation seeking, inhibited and disinhibited traits, four trait vulnerability model, anxiety sensitivity, impulsivity, comorbid disorders, temperament, locus of control and addiction, components model of addiction.
Integrate all three perspectives thorughout the essay, which ones compliment or contradict each other, thank you.

 

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