Usually anxiety is defined as emotions which are normally negative in nature. It will often consist of fear and worry, and some organisms even experience physical signs such as nausea or chest pains. Anxiety is a complex emotion, and is composed of a number of different elments. Some of these elements are somatic or cognitive, and the body will prepare itself to deal with an external threat. The various muscles in the body will also receive elevated levels of blood. At the same time, the functions of the digestive system will slow down. The rest of this article is about anxiety, and will help give an insight on the treatment of panic and other anxiety related issues. A number of voluntary and involuntary processes will take place in the body, and the goal of these processes is to get the organism away from the source that is causing it to have anxiety. Anxiety is an important emotion, and is designed to increase the survival rate of organisms. In humans it appears that anxiety comes from the hippocampus and amygdala, two regions of the brain. When a person senses bad odors or tastes, there will be a large amount of blood flow which will be present in the amygdala. Based on these studies, it appears that anxiety is designed to keep humans and other organisms from eating food or objects that may be harmful to their well being. While anxiety is normal, a person that has excessive amounts of it may have what is called an anxiety disorder. People who have phobias tend to have extensive imaginations, and realize that their fear is often irrational. When a person suffers from a panic disorder, they will have extreme panic attacks, and may have dizziness or breathing problems. These attacks will typically reach their height in about 10 minutes. Generalized anxiety disorders are common, and effect a much larger portion of the population. It is prevalent in both men and woman, and is characterized by long periods of anxiety that are not related to any specific object or situation. Many people who have this disorder need to be extremely clean, and are afraid of germs. To reduce their anxiety, they will wash their hands numerous times in a single day. There are two primary methods that are used to help those who are suffering from anxiety, and this is either therapy or prescription medicaitons.