The U-Shaped Curve of Happiness

“A snapshot of the age distribution of psychological well-being in the United States,” Stone, et al: PNAS, May 2010 (y-axis: WB stands for well-being)

This evening, after I finished cleaning up the kitchen after our family dinner, I glanced at the current issue of the Economist. The cover features this headline: the Joy of Growing Old (or why life begins at 46). It’s a light read, as this…