Acrophobia (from Greek ἄκρος, meaning "summit") is an extreme or irrational fear of heights. It belongs to a category of specific phobias, called space and motion discomfort that share both similar etiology and options for treatment. Acrophobia can be dangerous, as sufferers can experience a panic attack in a high place and become too agitated to get themselves down safely. "Vertigo" is often used, incorrectly, to describe the fear of heights, but it's more a… (More on Acrophobia)