Rather, to change a habit, you must keep the old cue, and deliver the old reward, but insert a new routine.
Charles DuhiggWhen people have a willpower failure, it's because they haven't anticipated a situation that's going to come along.
Charles DuhiggThe same process that makes AA so effective—the power of a group to teach individuals how to believe—happens whenever people come together to help one another change. Belief is easier when it occurs within a community.
Charles DuhiggShampoo doesn’t have to foam, but we add foaming chemicals because people expect it each time they wash their hair. Same thing with laundry detergent. And toothpaste—now every company adds sodium laureth sulfate to make toothpaste foam more. There’s no cleaning benefit, but people feel better when there’s a bunch of suds around their mouth. Once the customer starts expecting that foam, the habit starts growing.
Charles Duhigg