The Body Keeps the Score: Brain, Mind, and Body in the Healing of Trauma

Yes, you need to detect whether somebody is getting upset with you, but if your amygdala goes into overdrive, you may become chronically scared that people hate you, or you may feel like they are out to get you.

If you feel safe and loved, your brain becomes specialized in exploration, play, and cooperation; if you are frightened and unwanted, it specializes in managing feelings of fear and abandonment.

is amazing how many psychological problems involve difficulties with sleep, appetite, touch, digestion, and arousal.