Dr. George Sutphin starts off Science Lecture Series 2026 - recording available
"Aging Science: Preventing Disease At Its Source"
Hundreds of Tucsonans filled Centennial Hall on February 4, joined by an online audience, for the first lecture of this spring's Science Series - a tradition started by the University 20 years ago. Dr. George Sutphin, associate professor in the Department of Molecular and Cellular Biology, opened the series titled "Today's Science, Tomorrow's World" with the topic of aging and the question: how long can we stay healthy?
Aging is the single biggest risk factor for many of today’s most common diseases, yet some medical care still treats these conditions only after they appear. Sutphin explored how understanding the biology of aging itself could fundamentally change the way we approach healthcare.
Sutphin’s research centers on the idea that aging is the strongest risk factor for many of the most common and costly diseases, including cancer, heart disease, kidney disease, and Alzheimer’s. Rather than addressing these illnesses one at a time, aging science seeks to understand the shared biological processes that make them more likely as we grow older.
“Aging science is the study of the biological changes in our cells and tissues over time that reduce resilience – the ability to bounce back from stress, injury, or illness,” he said. “If we understand the shared biology that makes these conditions more likely as we get older, we may be able to delay or reduce risk across many diseases at once.”
By targeting the biology of aging, researchers hope to intervene earlier before multiple diseases come in and take hold of the body rather than treating each condition separately after damage has already occurred. “Treating disease one by one is important, but it is also inherently reactive,” Sutphin said. “Targeting the underlying biology of aging offers a prevention focused strategy.”
A key concept in Sutphin’s lecture was health span, which refers to the years of life spent in good health rather than simply the total number of years lived. “Health span is the portion of life spent in good health–staying, functional, independent, and able to do the things you value,” he said. “Lifespan is how long we live; health span is how well we live during those years.”
Sutphin hopes audiences left with both optimism and realism about the future of aging research. He emphasizes that the field is grounded in rigorous science and is increasingly moving toward clinical testing. “This is not science fiction,” Sutphin said. “It’s rigorous biology that is increasingly being translated into medicine.” At the same time, he said many proposed interventions are still under investigation and not approved for broad use.
Ultimately, Sutphin wants his talk to feel both hopeful and practical, grounding advances in aging research in actions people can take right now. While the field continues to open doors, he said the most effective tools for healthy aging are well supported and widely accessible, including adequate sleep, regular physical activity, balanced nutrition, social connection, and management of basic health risks such as blood pressure and metabolic health.