Scientists have studied human behavior change for decades, and there are hundreds of theoretical models designed to explain the many factors that influence decision making. My favorite model is the ...

You're not failing at behavior change because you're weak. You're navigating invisible reinforcement patterns. Here's how to shift the balance.

A staggering 129 million Americans have at least one major chronic disease—and 90% of our $4.1 trillion in annual health care spending goes toward treating these physical and mental-health conditions.

What do a former smoker, a successful entrepreneur, and a champion athlete have in common? They’ve all mastered the art of iteration—the key to lasting behavior change. In a world of constant flux and ...