Americans—older ones in particular—get far from enough exercise. Despite the remarkable health benefits of exercise, which TIME explored in a recent cover story, more than half of baby boomers don’t do any at all.
But Americans don’t just avoid sweaty bouts of physical exertion. Many avoid moving altogether, suggests a new study published inMorbidity and Mortality Weekly Report. According to the analysis of 2014 surveillance data, 28% of Americans ages 50 and over are inactive—meaning that 31 million adults are moving no more than necessary to perform the most basic functions of daily life.
