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The Nuance
You Can’t Deplete Your Willpower
Your self-control can fluctuate, but you probably can’t use it up
January is the month for resolutions, which also makes it the month for self-control. Whether you’re giving up your favorite latte or cutting back on Instagram, avoiding these and other temptations can feel draining. It’s as though you only have so much willpower in your tank, and the more of it you use, the harder it becomes to follow through on your good intentions.
Experts have a name for this phenomenon: ego depletion. The term was introduced in the 1990s by a team of psychologists at Case Western Reserve University in Cleveland. They argued that your “volition” — that is, your ability to make choices or engage in effortful behaviors — is a limited resource. The more willpower you expend, the more vulnerable you are to failures of self-control.
Ego-depletion theory quickly became one of the hottest concepts in psychology. “The idea really took social psychology by storm. It’s not an exaggeration to say that for a while it was at the center of the field,” says Michael Inzlicht, PhD, a professor of psychology at the University of Toronto. Inzlicht himself was swept up in the ego-depletion furor and published work that supported its existence and significance.
