We all have that little habit we'd like to get rid of: snacking in front of the TV, scrolling on our phone before going to ...

Singh explained that the idea of 21 days comes from the 1960 book Psycho-Cybernetics by plastic surgeon Maxwell Maltz, who ...

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 ...