Window of Tolerance

The “window of tolerance” is the zone where you can be in when your emotions are balanced and controlled, and you are thinking clearly and reacting rationally.

Too much intensity is called Hyperarousal.  This is an emotional state characterized by high energy, anger, panic, irritability, anxiety, hypervigilance, overwhelm, chaos, fight-or-flight instincts, and startle response (to name just a few characteristics). 

Too little intensity is called Hypoarousal.  By contrast, is an emotional state characterized by shutting down, numbness, depressiveness, withdrawal, shame, flat affect, and disconnection (to name but a few characteristics).