Factors

Biological

Sociological

Psychological

Predisposing

Had history

violence in

the family

Unable to mix with

others

Loss of both

parents when

he was five years old

Precipitating

Cannabis abuse

Isolate himself

School drop out

Perpetuating

Unrecognized

depressive traits

Poor social support

Low esteem he can

not resume his studies

Protective

General physical

health is good, can

avoid using

cannabis in

the future

Can be learn social

skill through

special programme

His intelligence

is above average he

can do well

if given psychosocial

support.