The Science of Sinning Less: What new research reveals about self-control and willpower — Few topics in social science right now are hotter than willpower and self-control, considering both the number of studies on the subject and the disputes over their validity. Psychologists, sociologists, and other scientists aren’t just interested in self-control’s practical benefits. They want to know what it is, how it works, and why some people seem to be better at it than others.