Write a 700- to 1,050-word analysis on theories related to the etiology of substance abuse and addiction. Include the following:
•Describe the biological influences related to substance abuse.
•Analyze the psychological and emotional variables that influence addiction.
•Analyze the role of factors related to ethnicity, gender, and socioeconomic status in the development of addiction.
•Examine how the etiological theories and issues related to substance abuse and addiction have changed over time.
•Describe how these theories differ between substance-related and process addictions.
Include a minimum of 5 sources.
Format your paper according to APA guidelines.