Susan has an alcohol addiction that encompasses physical dependence, in that she needs more and more alcohol to feel high, and psychological dependence, in that she feels she needs to drink to maintain her social life.
Explanation:
Alcohol addiction is a chronic disease which describes the uncontrolled drinking habit of the person. Physical dependence is a physical condition caused by chronic use of a tolerance-forming drug.
The psychological dependence explains the emotional and mental processes of the person. Due to alcohol addiction, Susan faced physical dependence. She consumes more and more of alcohol to maintain her social life.
The psychological dependence is noticed due to more consumption of drugs despite negative consequences.
