Why 28 Days Beats 21

The 21-day rule is a myth. 28 days gives you more repetitions and more realistic variability.

Work in progress. Struktur ist final; Inhalt wird ausgebaut.

The myth

Habit formation varies widely. The number is not universal—context matters.

Why 28 helps

4 full weeks = real life variability.
More reps to stabilize cues.
Easier weekly review rhythm.

How to use it

Weekly review: What worked? What was friction? What’s the smallest fix?

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