Better Than Before: What I Learned About Making and Breaking Habits--to Sleep More, Quit Sugar, Procrastinate Less, and Generally Build a Happier Life

by Gretchen Rubin

With children and adults alike, when people are strongly warned not to do a particular thing, they often want to do it more than ever (the lure of the forbidden); when they get milder suggestions, they react with less resistance over the long run.