Just exert a little self-control, you tell yourself. But it’s so hard! People frequently think of self-control as something ...

Think about the last time you were tempted to do something that you otherwise wouldn’t do, like eat that piece of candy, stay up that extra hour, or sit in front of the TV instead of go for a run. The ...

refusing that second slice of cake, walking past the store with the latest gadgets, working on your tax forms when you'd rather watch TV – seem to boil down to one essential ingredient: self-control.