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

A key for understanding many bad habits? Impulsivity. Impulsive people have trouble delaying satisfaction and considering long-term consequences; they find it difficult to plan ahead, and once they start a task, they struggle to stick with it. Also, when impulsive people feel anxious about performing a task, they often try to make themselves feel better by avoiding the task, by procrastinating.