Head for heights
To have a head for heights means that one has no acrophobia, an irrational fear of heights, and is not particularly prone to fear of falling or suffering from vertigo, the spinning sensation that can be triggered, for example, by looking down from a high place. Unlike acrophobia, a natural fear of heights is a normal phenomenon and not an illness. When one finds oneself in an exposed place at a great height above the ground below, one feels one's own posture as unstable. A normal fear of heights can also generate feelings of anxiety as well as autonomic symptoms like outbreaks of sweat.