Reviewed By Ray Spotts
Using data from the National Health and Nutrition Examination Survey, the researchers examined how biological age, relative to chronological age, changed in the U.S. while considering the contributions of health behaviors. Biological age was calculated using several indicators for metabolism, inflammation, and organ function, including levels of hemoglobin, total cholesterol, creatinine, alkaline phosphatase, albumin, and C-reactive protein in blood, as well as blood pressure and breath capacity data.