Once people learned how to believe in something, that skill started spilling over to other parts of their lives, until they started believing they could change. Belief was the ingredient that made a reworked habit loop into a permanent behavior.
Charles DuhiggChange might not be fast and it isn't always easy. But with time and effort, almost any habit can be reshaped.
Charles DuhiggThe cooperation of NASCAR - or any other system, it turns out - persists only when everyone believes he has the opportunity to win.
Charles DuhiggAs people strengthened their willpower muscles in one part of their livesโin the gym, or a money management programโthat strength spilled over into what they ate or how hard they worked. Once willpower became stronger, it touched everything.
Charles Duhigg