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Practical, research-backed reads on habits, fitness, nutrition, and getting the things done that matter to you. Browse by topic on the topics page.

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Habits

How Long Does It Really Take to Build a Habit? What the Research Says

The 21-day rule is a myth. Research tracking real people puts the average at 66 days — with a huge range. Here's what actually speeds habit formation up.

Jul 24, 2026 · 2 min read