The Anatomy and Biology of Anxiety
Here is an excellent infograph of the brain’s way of functioning with regards to anxiety. When speaking of stress, the term “HPA axis” usually comes to mind. Indeed, the hypothalamic-pituitary-adrenal axis plays a key part in the perception and impact of stress. However, this axis, though important, is only a chapter of the greater theatrics occurring in the brain of an individual experiencing anxious behaviour.
The following illustration, more global in its approach, will take you from its source to its inner functioning and repercussions in the brain and body.