Which of the following is considered a biological cause of mental disorder?

A) Teratogens

B) Poverty

C) Parenting

D) Negative thought patterns

E) Internalized hostility

Depression is lifelong, though you can get medication to with it. the difference between sadness and depression is that sadness lasts a little bit, depression last a long time and it goes on and off. people usually get depression through experiences they have been through, or genetics.