Why is it so hard to make lasting changes lives? The primary obstacle is a conflict that's built into our brains, say authors Chip and Dan Heath. Our minds are ruled by two different systems-the rational mind and the emotional mind-that compete for control. The rational mind wants to change something; the emotional mind loves the comfort of the existing routine. This tension can doom a change effort-but if it is overcome, change can come quickly. In Switch, the Heaths show how everyday people have united both minds and, as a result, achieved dramatic results.
