The Power of Habit
Charles Duhigg · 2012
"Habits run on a neurological loop of cue, routine, and reward, and the reliable way to change an existing habit is to keep the same cue and reward while deliberately swapping out the routine in between — not to rely on willpower alone."
Duhigg's core claim is that habits aren't decisions you keep re-making — they're a loop your brain runs on autopilot to save effort: a cue triggers a routine, the routine delivers a reward, and repetition wires the loop so tightly that eventually the cue alone triggers a craving for the reward before the routine even starts.
Read more about the topic
Identity-Based Habits
"True behavior change is identity change. If you don't shift how you view yourself, you will eventually sabotage your new habits to align with your old identity."