Dr. Kashey describes how the space between Stimulus and Response consists of what you Think, Feel and Decide to do, which all connect in a circular way. A Stimulus bigger than your tolerance for frustration means your Thoughts about the Stimulus will become distorted, and you will Feel negative and make impulsive Decisions, all leading to self-sabotaging Responses. This system is fed by things blocking you from what you want and your own beliefs. Behavioral scientists have shown the best way to change a rigidly reinforced belief is by forcing yourself to repeatedly act otherwise. The client used a full day of fasting to test whether any actual dire consequences occurred if she felt the urge to eat and purposefully did nothing, and so her distorted belief hypothesis was found to be untrue!