Anxiety disorders are a group of mental disorders characterized by significant and uncontrollable feelings of anxiety and fear[2] such that a person's social, occupational, and personal functions are significantly impaired.[2] Anxiety may cause physical and cognitive symptoms, such as restlessness, irritability, easy fatigue, difficulty concentrating, increased heart rate, chest pain, abdominal pain, and a variety of other symptoms that may vary based on the individual.[2]
