Explicație:
1.Most of the people are born with this fear,but for those who weren't born with this fear,well it's enough to look at a image for it to trigger.
2.Usually people tend to have head pains,puke or even worse,faint.
3.As i said before, much people have this common fear,so most of the famous people do have heights fear.
4.It is enough to search height fear and to look at the horrifying images of people at big height,even looking at a image can cause you sickness (the image from google)
