Not 21 days
April 19, 2014 1:40 PM Subscribe
How Long does it actually take to form a habit? Answer: Not 21 days. ...Maltz's work influenced nearly every major "self-help" professional from Zig Ziglar to Brian Tracy to Tony Robbins. And as more people recited Maltz's story -- like a very long game of "Telephone" -- people began to forget that he said "a minimum of about 21 days" and shortened it to: "It takes 21 days to form a new habit." A study debunks a popular self-help myth.
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