Cultivate genuine belief that change is possible

Habits stick permanently only when the person believes they can change — especially under stress.

Why it works

Research on habit relapse shows that people who changed behavior but who did not believe change was possible returned to the old habit under stress, even years later. The belief that change is possible functions as a buffer against relapse: when a slip happens, belief allows re-engagement rather than collapse into the old pattern. Community and social reinforcement are among the most reliable generators of this belief.

How to do it

1. Identify at least one person or group who has made the same change — vicarious evidence makes belief concrete.
2. Find a community (online or in person) that normalizes the changed behavior as possible.
3. When a slip happens, practice framing it as a data point about the cue/reward, not as proof that change is impossible.

Evidence

Duhigg draws on AA outcome studies showing that belief in a "higher power" — interpreted as any genuine conviction that change is possible — predicted relapse prevention. The AA literature is real, though hard to generalize beyond that context. (observational)

The AA evidence is specific to alcohol dependence and to group-based programs; generalizing "belief" as a technique to other habits is plausible but extrapolated.

Common mistake

Relying on motivation or willpower as the primary buffer against relapse, which depletes — while ignoring the role of social context and narrative in sustaining belief under pressure.