A large body of research has been developed in recent years to explain many facets of willpower. Most of the researchers exploring self-control do so with an obvious goal in mind: How can willpower be strengthened? If willpower is truly a limited resource, as the research suggests, what can be done to conserve it?
Avoiding temptation is one effective tactic for maintaining self-control. In Walter
Mischel’s marshmallow study, the children who stared directly at the treat were less likely to resist it than were kids who closed their eyes, turned away or otherwise distracted themselves.
The “out of sight, out of mind” principle applies to adults, too. One recent study, for instance, found office workers who kept candy in a desk drawer indulged less than when they kept the candy in plain sight.
Another helpful tactic for improving self-control is a technique that psychologists call an “implementation intention.” Usually these intentions take the form of “if-then” statements that help people plan for situations that are likely to foil their resolve. For example, someone who is watching their alcohol intake might say before a party, “If anyone offers me a drink, then I’ll ask for club soda with lime.” Research among adolescents and adults has found that implementation intentions improve self-control, even among people whose willpower has been depleted by laboratory tasks. Having a plan in place ahead of time may allow you to make decisions in the moment without having to draw on your willpower.
The research suggesting that we possess a limited reservoir of self-control raises a troubling question: When we face too many temptations, are we destined to fail? Not necessarily. Researchers don’t believe that one’s willpower is ever completely exhausted. Rather, people appear to hold some willpower in reserve, conserved for future demands. The right motivation allows us to tap into those reserves and persevere even when our