Against Willpower (2017)

He found that the children who had been better able to resist temptation went on to achieve better grades and test scores.1 This finding set off a resurgence of scholarly interest in the idea of “self-control,” the usual term for willpower in psychological research. Studies supporting the ego depletion effect were supposedly replicated dozens of times, spawning best-selling books (including Baumeister’s own, Willpower) and countless research programs. Related studies have shown that beliefs about willpower strongly influence self-control: Research subjects who believe in ego depletion (that willpower is a limited resource) show diminishing self-control over the course of an experiment, while people who don’t believe in ego depletion are steady throughout.

Source: nautil.us