" There are two types of personalities, Type A and Type B. Whereas Type B’s are laid-back and non-competitive, Type A’s are characterized by ambition, aggression, and a need for control. (This is a broad generalization and many people lie somewhere between A and B.) Type A’s are champing at the bit, and that drive can translate to stress; indeed, these traits are often associated with stress-related ailments. "

― Catherine Gildiner , Good Morning, Monster: A Therapist Shares Five Heroic Stories of Emotional Recovery