Finding something worth knowing…

Health

Agoraphobia is not simply a fear of open spaces

The name means fear of the marketplace, but agoraphobia centres on feeling trapped somewhere escape or help seems out of reach: a bus, a queue, a crowded mall. Many sufferers first endure a panic attack in such a place, then build their lives around never risking another, sometimes to the point of never leaving home.

German psychologist Karl Westphal coined the term in 1871, joining Greek words for a place of assembly and for fear. Today it affects roughly 1.7 per cent of adults, women about twice as often as men. It is rare in childhood, usually starts in adolescence or early adulthood, and becomes more common after 65. Genes and experience both play a part: it runs in families, and a shock such as losing a parent or being assaulted can set it off.

For most people who reach specialists, it follows panic disorder. A panic attack floods the body with adrenaline, peaking within about 10 to 15 minutes, with a racing heart, sweating, dizziness and a fear of dying or losing control. Dread of a repeat drives avoidance of the places where attacks happened. Whether agoraphobia can exist without panic was long disputed; the DSM-5 now treats the two as separate conditions that can occur together.

Some explanations look beyond anxiety. A disproportionate number of people with agoraphobia have weak balance systems in the inner ear and lean heavily on vision, so they can feel disoriented where visual cues are sparse, as in open plazas, or overwhelming, as in crowds; a virtual reality study found them unusually sensitive to conflicting sensory signals. Long-term use of benzodiazepines has been linked to its onset, with symptoms easing in ten patients within a year of supported withdrawal. Evolutionary accounts suggest fear of exposed ground once helped humans avoid predators, while some geographers tie the condition to modern cities and car culture.

Left untreated, it seldom fades. Cognitive behavioural therapy leads to resolution in about half of patients, and graded exposure aims to erase lingering avoidance, not just the attacks, often easier with a trusted companion along. One small pilot study tested whether morning sessions, when cortisol runs high, worked better than afternoon ones, and found no clear difference once body-clock type was accounted for.

Source: Agoraphobia

Related

More in Health · All topics