Why some people repeatedly engage in harmful addictive behaviours

The following post has two assignments namely;

1.Why some people repeatedly engage in harmful addictive behaviors

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

2.Significant Events’ that have impacted the United States Criminal Justice system

Give a timeline of ‘5 Significant Events’ that have impacted the United States Criminal Justice system. Give the events in proper sequence and explain how one events impacted/influenced the other. Provide examples with explanation.