Acrophobia

Everyone has his or her own point of view about levels of height. Some people like to enjoy the view from the highest skyscrapers, while others feel themselves comfortable when there is no abyss in front of them. But there are also people who start to panic and feel paralyzing fear standing on high place.
  Acrophobia is fearing of height.
Acrophobe is a person who feels sickness and dizziness standing aloft.Of course, it is natural reaction of everyone  to the loftiness. But acrophobe would feel it even if there is no risk to fall down.
Acrophobe tries to avoid balcony, housetop or high towers and absolutely dislikes travel by plane
The reasons of this phobia can be various. It can be caused by genetics, by failed experience at the childhood (falling down from high place), upbringing or something else.
How you feel yourself standing in the top of skyscraper?
Would you like to hit the silk?