The DSM-5 recognizes several distinct anxiety disorders. Generalized Anxiety Disorder (GAD) involves chronic, difficult-to-control worry about multiple domains of life, accompanied by physical symptoms like muscle tension, fatigue, and sleep disruption. Panic Disorder involves recurrent unexpected panic attacks — sudden surges of intense fear with physical symptoms — and persistent worry about future attacks. Social Anxiety Disorder is intense fear of social situations driven by fear of judgment, not shyness. These are meaningfully different conditions with different treatment implications.
The physiology of anxiety is real. Activation of the sympathetic nervous system produces the classic fight-or-flight response: elevated heart rate, increased respiration, muscle tension, GI symptoms. In anxiety disorders, this response fires disproportionately and is difficult to downregulate. Patients are not overreacting — their nervous systems are responding to a perceived threat that the rational mind knows isn't there.
First-line treatment for most anxiety disorders is Cognitive Behavioral Therapy (CBT) — specifically exposure-based approaches. SSRIs and SNRIs are the pharmacological standard. Benzodiazepines are used short-term in some cases but carry dependence risk and are not a long-term solution. Exercise has meaningful evidence as an adjunctive treatment.
Anxiety and depression commonly co-occur. Many people with untreated anxiety develop depression over time. Identifying and treating anxiety early has downstream benefits that extend well beyond the anxiety itself.