Understanding Anxiety Disorder: Symptoms, Causes, and Treatment Options Anxiety disorder is characterized by excessive and persistent worry, fear, or nervousness. Symptoms may include restlessness, rapid heartbeat, sweating, trembling, fatigue, and sleep disturbances. Potential causes include genetics, brain chemistry, personality, and life events or trauma. Diagnosis involves a physical exam and mental health evaluation. Treatments include psychotherapy and medications like antidepressants and anti-anxiety drugs. Regular physical exercise, relaxation techniques, a healthy diet, and avoiding caffeine and alcohol can help manage symptoms. Seeking help from mental health professionals is crucial for effective management of anxiety disorders. Learn more about anxiety disorders and find the support you need.