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

I became convinced, however, that the defining aspect of habits isn’t frequency, or repetition, or the familiarity of the cues for a particular behavior. These factors do matter; but in the end, I concluded that the real key to habits is decision making—or, more accurately, the lack of decision making. A habit requires no decision from me, because I’ve already decided.