If you think you do enough physical activity at work to keep you healthy, you're probably wrong.
Health researchers say only about 6.5 percent of U.S. adults meet physical activity guidelines while they're working.
And those that do are disproportionately Hispanic men and men with less than a high school education.
The national estimate — the first of its kind — was reported Thursday in a Centers for Disease Control and Prevention publication, Morbidity and Mortality Weekly Report. It's based on a 2007 national telephone survey.
Somewhere between 45 percent and 65 percent of adults say they exercise enough outside of work to meet government recommendations for physical activity, according to earlier studies.