1The Knowing-Doing Gap

How many times have we been told that the formula for maintaining a healthy weight is to eat a balanced diet and exercise regularly? Although sophisticated marketers package this information in many creative ways, it’s really quite simple: calories in equal calories out. If we know the formula, then why do so many of us still struggle to lose weight? The real secret to maintaining a healthy weight is not in knowing the formula, but in executing it. That is where our challenge seems to lie—in applying what we already know.

This same dynamic is magnified every year on January 1, when millions of us make New Year’s resolutions. The beginning of a new year is a time to start fresh, to set new goals, and to make new plans for ...

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