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How Habits Form: Comparing Expert's Models
As Clear notes, his habit formation stages expand upon productivity expert Charles Duhigg’s habit model from The Power of Habit—but Clear doesn’t specify how his approach differs. Clear presents a four-stage model of habit formation, but Duhigg’s model has only three stages: First, there’s the cue, or the trigger that tells your brain which habit to use. Second, there’s the routine, in which you act out the habit, and third, there’s the reward, which is the result of the routine and reinforces the habit. Duhigg’s model doesn’t include Clear’s cravings stage—although Duhigg does discuss how cravings drive behavior.