toothpaste example of a satisfying behavior change, 186
tracking a habit
automated, 199
combining habit stacking with habit tracking, 200
manual, 199 –200
usefulness of, 202 –204
trajectory of your current path, 18
two-step process of changing your identity, 39 –40
Uelsmann, Jerry, 141 –42
Ulysses pact (Ulysses contract), 170 n
underlying motives and cravings, 127 –28, 130
Valley of Disappointment, 20 , 22
variable rewards, 235
Vietnam War heroin addiction problem, 91 –92
vision
impact on human behavior, 84
obvious visual cues, 85 –87
visual measurements, 195 –96
weight loss
nonscale victories, 203 –204
using a habit contract to ensure, 208 –209Yerkes-Dodson law, 232