Phobias
phobias - extreme or irrational fear of something
In the US 8.7% of people (over the age of 18) have at least one extreme specific fear and neary 25 million americans report having a fear of flying. on what your what your afraid of it changes your phobias such as being scared of spiders arachnephobia. depending on what you were exposed to as a child or even as adult can change and add phobias.