Class A Fires consist of ordinary combustibles such as wood, paper, trash or anything else that leaves an ash. Water works best to extinguish a Class A fire. Class B Fires are fueled by flammable or combustible liquids, which include oil, gasoline, and other similar materials.
The amygdala is involved in our experience of emotion and in tying emotional meaning to our memories. The hypothalamus regulates a number of homeostatic processes, including the regulation of body temperature, appetite, and blood pressure.
The fear and anxiety-related memories that you have stored in these parts of your brain can be triggered by any number of stimuli in your everyday life to produce fear and anxiety in the present moment. Your body is designed to store and recall emotional memories in this fashion to keep you alive.