Telomeres (IMAGE) Salk Institute Caption Telomeres (green) protect the ends of our chromosomes (blue), but lose this protective capacity as we age. Credit Salk Institute Usage Restrictions With credit and related coverage License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.