Gretchen Rubin, best-selling author of "The Happiness Project," has spent her entire career studying what makes people happy ...

At the end of the day, happiness isn’t about reaching a final destination—it’s about creating a life that feels meaningful and fulfilling along the way. So step off the treadmill.

By Christina Caron The happiness curve is collapsing. For decades, research showed that the way people experienced happiness across their lifetimes looked like a U-shaped curve. Happiness tended ...