Anxiety symptoms refer to the physical, emotional, and behavioral indicators of anxiety disorders, which can include excessive worrying, restlessness, racing thoughts, irritability, muscle tension, difficulty concentrating, and panic attacks. These symptoms can vary in intensity and duration, and can greatly impact an individual's daily functioning and overall well-being. Research in this area focuses on understanding the underlying causes of anxiety symptoms, developing effective assessment tools and treatments, and exploring the relationship between anxiety symptoms and other mental health conditions.