Trauma And Stress Related DisordersPost Traumatic Stress Disorder (PTSD)While not classified as an anxiety disorder, many people who develop PTSD struggle with various anxiety symptoms, such as intrusion symptom
some way, the amygdala (considered to be the “fear center” of the brain) sends a message to the hypothalamus area of the brain (considered to be the “command center”), which in turn signals the adrenal glands to release stress hormones (adrenaline, noradrenaline, cortisol, and others)....
The famous fight-or-flight response is a biological response to acute threats, and is more common in anxious people but not synonymous with anxiety. “The stress response” to threats to life and limb — the biology of panix — predates “anxiety” in homo sapiens by about a billion years...