Dana Knight, left, a health technician, works with Jason Tornichio, a guest participant, for balancing tests at the mobile exam center of National Health and Nutrition Examination Survey in Reynolds Community College, Henrico, Va., on Monday, Oct. 3, 2022. The mobile exam center for National Health and Nutrition Examination Survey travels across the United States yearly, visiting 15 counties and asking about 5000 selected residents to be part of this unique health survey.
