How Healthy Are We?

Childhood, adolescence, even the "twilight years" have been extensively researched and documented. But the vast terrain known as midlife—the longest segment of the life course—has remained uncharted. How physically and psychologically healthy are Americans at midlife? And why do some experience greater well-being than others? The MacArthur Foundation addressed these questions head-on by funding a landmark study known as "Midlife in the U.S.," or MIDUS. For the first time in a single study, resea