Anxiety can be defined as emotions that are generally negative in nature. They often consist of fear and concern, and some organisms may even experience physical signs such as nausea or chest pains. Anxiety is a complex emotion, and consists of a number of different elments. Some of these items are somatic or cognitive, and the body will be prepared to face an external threat. The heart rate quickens, blood pressure increases. Different muscles in the body will also receive high levels of blood. At the same time, the functions of the digestive system slows down.

People who have anxiety often have a sense of fear. A series of voluntary and involuntary, will be held in the body, and the goal of these processes is that the body was the source that is causing anxiety to have. Anxiety is an important emotion, and is designed to increase the survival rate of organisms. In humans, it appears that anxiety comes from the amygdala and hippocampus, two brain regions. Detects when a person smells or tastes bad, there will be a large amount of blood flow to be present in the amygdala. The evidence also showed that average levels of anxiety are presented in this situation too.

Based on these studies, it seems that anxiety is designed for humans and other organisms from eating food or objects that may be harmful to their welfare. While anxiety is normal, a person who has excessive amounts of which can have what's called an anxiety disorder. In extreme cases, people with anxiety disorders may have strong where they are terrorized. Anxiety disorders are subdivided into phobias, panic disorder, generalized anxiety disorders, and obsessive-compulsive disorders. Someone who suffers from a phobia will have an abnormal amount of fear of a specific object or situation. People who have phobias tend to have a broad imagination, and realize that their fear is often irrational.

When a person suffers from a panic disorder, panic attacks will end, and may have trouble breathing or dizziness. These attacks are usually reached its height in about 10 minutes. Generalized anxiety disorders are common, and a much larger proportion of the population. It is common in men and women and is characterized by long periods of anxiety that are not related to any specific object or situation. With obsessive compulsive disorder, the individual has a compulsion or obsession when it comes to specific types of behavior. People who suffer from this disorder is the obsessive need to do something to reduce their anxiety.

Many people with this disorder must be very clean, and are afraid of germs. To reduce your anxiety , wash their hands many times in one day. There are two main methods that are used to help those suffering from anxiety, and that is whether the therapy or prescription medicaitons.