Can can affect people of all ages, from teens to the elderly. Anxiety disorder can be acute or chronic. Acute manfests itself in panic attacks.
Chronic anxiety is usually a milder more generalized problem.
Sometimes it can even be hereditary. In any event, seek the help of your medical professional. Natural herbal formulas can often be of great assistance. Melatonin can help you get a better night's sleep. Lack of sleep is often one of the major causes of stress.