Health and Fitness Researchers Identify Genomic Variant Associated with Sun Sensitivity, Freckles by Gary Kopycinski on November 21, 2013 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 NIH-funded work finds genetic switch for pigmentation trait in non-coding, regulatory region of newly associated gene