Every January, we chase the "New Year, New Me" dream—new house, new job, new body—only to find ourselves back at the same level of satisfaction by February. Why? In this essential New Year’s Refresh episode, we sit down with Dr. Sonja Lyubomirsky, the world-renowned "Doctor of Happiness." She explains the "Hedonic Treadmill"—the scientific reason why chasing life circumstances often leaves us disappointed—and how you can break that cycle to find joy that actually sticks. If your resolution is to simply be happier this year, this is the only data-driven guide you need.