Here is a pretty interesting article on phobias. Two  things that  I found interesting is   how it says  that  there almost 6.3 million adults suffer from  phobias, I really  did not think  they  were that  many  people who suffer from some  kind of phobia.  Another thing I found interesting is how  twins seem to  suffer from  the same  phobia  even  when  they are raised in different households and educated  in different schools.