Explanation- Personality

Substance abuse may be related to the abuser's personality. 

Extrovert 

They seek excitement, they are easily bored, sociable and outgoing and therefore engage in a substance. 

Low levels of conscientiousness 

Disorganised, unreliablel and careless. Therefore, more likely to engage in a substance. 

APD

3% of the population have this. It mainly affects males. 

They  have a lack…