1. A mentally healthy person feels comfortable with themselves, respects others, and is able to meet life's demands without being overwhelmed by emotions.
2. Mental illness is characterized by disturbances in thinking, mood, or behavior that cause distress or impair functioning. Symptoms can be physical, emotional, cognitive, behavioral, or perceptual.
3. Mental disorders include psychotic disorders like schizophrenia which involve a loss of contact with reality, and non-psychotic disorders like depression, anxiety disorders, and eating disorders.