By Dr. Liji Thomas, MD Reviewed by Lauren Hardaker May 1 2026 A simple facial photograph may reveal more than appearance. This study shows how tracking subtle changes in facial aging over time could help predict survival and reshape cancer care.  Study: Face aging rate quantifies change in biological age to predict cancer outcomes . Image credit: hedgehog94/Shutterstock.com A study published in  Nature Communications   examines the predictive capability of photograph-based face aging rate (FAR)