Health and Fitness NIH Study Finds Calorie Restriction Lowers Some Risk Factors for Age-related Diseases by Gary Kopycinski on September 3, 2015 Gary Kopycinski Author More in Health and Fitness: On Hantavirus, Park Forest Officials Urge Caution May 18, 2026 Rep. Kelly Condemns FDA Approval of Flavored E-Cigarettes May 6, 2026 Park Forest Aligns With Illinois Guidance on Childhood Vaccines Amid Federal Changes January 11, 2026 Two-year trial did not produce expected metabolic changes, but influenced other life span markers