key advantage of having a Biopsychosocial approach to understanding Mental Health conditions

What is the key advantage of having a Biopsychosocial approach to understanding Mental Health conditions?

The biopsychosocial model has another advantage. As well as being able to explain mental health in terms beyond the purely biomedical, it shows us there is potential to positively influence a person’s mental health in the workplace.

Identify the key fields of a Biopsychosocial assessment, I am struggling with an example.