Have you heard of acrophobia? I think it is something to do with a fear?
Oh yes, it is the fear of height
I see, I definitely have that fear at times. I don't like to go up tall buildings because I get dizzy.
Me too, its so scary. Most people experience a degree of natural fear when exposed to heights, 
That probably came from our evolutionary history. I bet many who weren't afraid of heights fell of a cliff, lol.
Acrophobia
Acrophobia is an extreme or irrational fear or phobia of heights, especially when one is not particularly high up. It belongs to a category of specific phobias, called space and motion discomfort, that share both similar causes and options for treatment.
Most people experience a degree of natural fear when exposed to heights, known as the fear of falling. On the other hand, those who have little fear of such exposure are said to have a head for heights. A head for heights is advantageous for those hiking
has been done to shake up people before. You know, I'm responsible for it in "Iron Man" and I was editor of "Thor" at the time of Beta Ray Bill, and believe me it's a trick I know "works" because I've seen it work a number of times. It's just to get you noticed so that people who don't normally read it will say, "Oh, I heard something about this, let me read it and see." And with luck