Maxwell Maltz, the author of "Psycho-Cybernetics," called this tendency the "Snap-Back Effect." He used the analogy of a rubber band: you can stretch it only so far before it snaps back to its ...

The funny part is that this much-repeated adage is actually a myth. A misquoted and often misinterpreted part of plastic surgeon Maxwell Maltz’s book, Psycho-Cybernetics,the 21 days actually referred ...