A new study published in the Proceedings of the National Academy of Sciences presents a blood-based proteomic signature that predicts how long people are likely to live in good health—known as healthspan. The Healthspan Proteomic Score (HPS), developed by researchers at the UConn School of Medicine and collaborators at the University of Helsinki and the University of Exeter (UK), provides a powerful tool for understanding biological aging and assessing risks for a wide range of chronic diseases.