Answer:
A mental disorder is defined as a pattern of behavior in a person that is associated with distress or impairment or significantly increased risk of suffering, death, pain, disability, or loss of freedom.
Step-by-step explanation:
Mental disorders are illnesses that affect the behavior, mood, thoughts, and feelings of the suffering individual.
Mental disorders do not have a clear cause but there is a number of factors that can lead to an increase of chances in certain people of developing one: from genetics to traumatic events in life.
These conditions can have a single episode or be persistent and must be diagnosed by a mental health professional, like a psychiatrist.