Whenever I've thought about willpower before, it's been in the context of not doing something. Like not eating that piece of chocolate cake. Or not having that seemingly essential extra cup of coffee.

Who among us has not made a plan to get up in the morning and exercise, but then hit snooze one time too many, sleeping through our morning jog? We may have been super-inspired by the incredible brain ...

Kory Zimney picked up Stanford University psychologist Kelly McGonigal's book "The Willpower Instinct" because he thought it might help him better understand his patients.