In the U.S., as in many industrialized nations, policymakers have embraced the notion that most individuals can (and should) work longer. But changes across generations in health, family, and work may make it hard for substantial sections of the U.S. population to continue to work into their 60s or beyond. With funding from the Alfred P. Sloan Foundation, Professor Lisa Berkman and Harvard Pop Center postdoctoral fellow Beth Truesdale will…