Acrophobia (from the, ákron , meaning "peak, summit" and, phóbos, "fear")'s 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"'s often used, incorrectly, to describe the fear of heights, but it's more ac… (More on Acrophobia)