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What is the definition of agoraphobia?
A phobia is generally defined as the severe, unrelenting fear of a situation, activity, or thing that causes one to want to avoid it. The definition of agoraphobia is a fear of being outside or otherwise being in a situation from which one either cannot escape or from which escaping would be difficult or humiliating.
Phobias are largely underreported and underdiagnosed, probably because many phobia sufferers find ways to avoid the situations to which they are phobic. The fact that agoraphobia often occurs in combination with panic disorder makes it even more difficult to track how often it occurs. Other statistics about agoraphobia include that researchers estimate it occurs from less than 1% to almost 7% of the population. Its age of onset is most often during the mid to late 20s.