Editor’s note: One Small Thing is a new series to help you take a simple step toward a healthy, impactful goal. Try this one thing, and you’ll be heading in the right direction. CNN  —  What are you focusing on in the new year to improve your health? Regular exercise, of course, is a proven winner, as is eating plant-based meals . Getting more high-quality sleep , reducing stress, limiting alcohol and connecting with other people in meaningful ways are also key ways to boost well-being. However,