The fear of heights, or acrophobia, is a common psychological condition that affects many people. It can manifest in various ways, from mild discomfort to intense panic attacks when faced with heights. Hong Chong Yi-Conquering Your Fear of Heights Physiologically, this fear triggers the body's fight-or-flight response, leading to symptoms such as increased heart rate, sweating, dizziness, and even nausea. Common triggers include standing on high ledges, climbing tall structures, or even looking down from a height.