Historic Route 66. While no longer an official U.S. highway, the Main Street of America stretches from Chicago to Santa Monica, with four separate sections designated as national scenic byways.
Underlying Causes of a Panic Attack. In order to gain control of your panic symptoms, it can be helpful to understand the physiological reaction that underlies them. The first trigger in the chain of events happens in your brain.
Panic disorder causes panic attacks spontaneous feelings of anxiety, terror, or impending doom. Physical symptoms include heart palpitations, chest pain, and shortness of breath. These attacks may be repeated at any time.