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LESSON 1 · The Habit Machine

The Three-Part Loop

Every habit, from brushing your teeth to opening Instagram, runs on the same loop: a cue starts it, a routine carries it, and a reward teaches the brain to repeat it.

The loop has three parts: cue, routine, and reward. Name those in any habit and you can redesign the trigger, behavior, or payoff instead of fighting autopilot blindly.