<unk>  is an extreme or irrational fear or phobia of heights, especially when one is not particularly high up. It belongs to a category of specific phobias, called space and motion discomfort, that share both similar causes and options for treatment. Most people experience a degree of natural fear when exposed to heights, known as the fear of falling. On the other hand, those who have little fear of such exposure are said to have a head for heights. A head for heights is advantageous for those hiking or climbing in mountainous terrain and also in certain jobs such as steeplejacks or wind turbine mechanics. People with<unk>  can experience a panic attack in high places and become too agitated to get themselves down safely. Approximately 2–5% of the general population has<unk> , with twice as many women affected as men. The term is from the , , meaning "peak, summit, edge" and , , "fear".
Acrophobia
Coprophobia
Phobia
Agoraphobia
Apeirophobia
Alexithymia
Claustrophobia
Aquaphobia