- **Definition**: A group of mental health disorders characterized by excessive fear or anxiety. - **Types**: Generalized anxiety disorder (GAD), panic disorder, social anxiety disorder, specific phobias, and [[Obsessive-Compulsive Disorder|OCD]]. - **Symptoms**: Restlessness, fatigue, difficulty concentrating, irritability, muscle tension, and sleep disturbances. - **Treatment**: Cognitive-behavioral therapy, medications (antidepressants, anti-anxiety medications), and lifestyle adjustments.