Phobia
Agoraphobia – fear of the public places
What is it?
Agoraphobia is a type of anxiety disorder in which a person has an intense fear of being in new places or places where he/she is not familiar with. The term "agoraphobia" is derived from Greek words "agora" that means marketplace and "phobia" which translates to fear. It is known that Agoraphobia is twice as likely to effect women as men. In Unites states alone there are about 3.2 millions of people who suffer from this type of anxiety disorder.
Acrophobia- Fear of Height
What is it?
Acrophobia is excessive and extreme fear of heights which is one of the most common phobias that occurs when one is looking down from high places like high floor building or on a summit. The term Acrophobia is denoted from Greek words "acro" which translate to "highest height" and "phobia" which means fear. People who suffer from this phobia usually avoids being in tall buildings and roller coasters ride. Despite the fact that these people also suffer from urges to throw themselves off high places, they are actually not suicidal.

Hemophobia The Fear of Blood
What is Hemophobia?
Hemophobia is an anxiety disorder in which one suffers an intense fear of blood or injection. This fear is not only triggers on the sight of blood but also when thinking or imagining about blood related incidents.
It is derived from Greek words "haima" which means blood and "phobia" meaning fear. This phobia can cause severe anxiety which might result in distinct physical reactions that are not found in other phobias.
Aerophobia – Fear of Flying
What is Aerophobia?
Aerophobia is persistent and obsessive fear of being airborne commonly happens when flying with airplanes. The term Aerophobia is derived from Greek words "aero" and "phobia" meaning air and fear respectively. 
This surprisingly common form of anxiety disorder affects more and more people everyday. This anxiety disorder prevents people to from going far away places that they want or need to go. This prevents sufferers to get expose to more business opportunities as those would require extensive flying schedule.
Astraphobia
Astraphobia may be defined as a persistent, abnormal and unnecessary fear of thunder and lightning. The term astraphobia is derived from Greek words 'aster' and 'phobos' meaning star and fear respectively. This needless phobia causes great amounts of distress to number of people around the globe.
People who have astraphobia usually will not speak about their problem to others. Astraphobia is also more common in dogs.
Arachnophobia
Arachnophobia is a type of specific phobia and can be defined as an unusual fear of spiders. The term arachnophobia is derived from Greek words 'arachne' and 'phobia' meaning spider and fear respectively. Many people experience fear only mild while some people have great fear for spiders.
Arachnophobia is one of the most wide spread phobias and is more common in women than in men. About half of ladies and 10% of men are arachnophobics.
Is arachnophobia an act of cowardliness?
Social Phobia
Social Anxiety commonly known as social phobia is a kind of anxiety problem. Too much of self-consciousness and extreme shyness create an irrational fear.
This anxiety problem is called as social phobia. Social phobia prevents a person from participating in day to day social activities.