Many of us are brimming with good intentions right now, determined to eat more healthily, get organized or fulfill our other New Year’s resolutions. But by February we’ll have reverted back to our old ways. Why is it so difficult to make these lasting behavioral changes? Wendy Wood, PhD, of the University of Southern California, discusses the research on how habits drive our behavior, why habits are so difficult to break, and how we can harness the power of habit to make the behavioral changes we want.

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