We can distinguish two major groups of causes of this disorder, first causes of generalized anxiety disorder and other causes of the episodes described as panic attacks or panic.
In the case of generalized anxiety disorder causes are not fully known but there are some factors that predispose to its development. Outstanding in this group, the individual’s genetic inheritance, brain neurotransmitters and environmental factors.
Recent research suggests that family history predisposes and increases the chance of developing the disorder, ie, generalized anxiety disorder may be partly hereditary.No doubt environmental factors can cause and trigger in many cases of generalized anxiety disorder. A bad experience, a trauma or stressful events can trigger the onset of generalized anxiety disorder. Periods of stress can worsen symptoms and other factors such as consumption of drugs or alcohol and snuff, can also worsen the course of the disease.
Generalized anxiety disorder is also associated with alterations in the functioning of the brain neurotransmitters, biochemical substances present in the central nervous system that are directly involved in their regulation and function.
To speak of the causes of the crisis anxiety or panic anxiety is necessary to distinguish between primary and secondary anxiety. In the primary anxiety found no cause that justifies the picture as a secondary anxiety disorder is another cause, for example, the consumption of drugs such as alcohol, amphetamines and cocaine, or other diseases such as hyperthyroidism.