Raise your hand if you’ve ever: planned to exercise, but ended up on the couch; started a diet, then found yourself eating cake; vowed to save money, then splurged on a new purchase. These examples demonstrate a key focus of the behavioral sciences called the intention-action gap: basically, people often know what we should do, and we have good intentions, but we have trouble following through on these intentions. There’s a gap between what we want, and what we do.