Buck Institute launches major initiative to measure and extend healthy years
People are living longer, but those extra years are often far from healthy ones. The Buck Institute, the world's largest research institute dedicated exclusively to aging, is now launching a new program aimed at closing that gap. The name: Healthspan Horizons.
There is a fundamental problem with the way we measure and address aging. Life expectancy has long been the dominant metric in medicine and public health policy. But a longer life spent largely in illness or functional decline is no victory. The scientific community is increasingly converging on the view that "healthspan" — the years a person spends in good health — is a far better outcome measure. The catch: there is no universally accepted definition of healthspan, let alone a standardized way to measure it.
Healthspan Horizons aims to tackle exactly that problem. The program rests on three pillars: developing scientifically valid and broadly applicable tools to measure healthspan; investigating the biological mechanisms that cut healthy years short; and accelerating the translation of laboratory findings into clinical applications. To do so, the Buck Institute is actively seeking collaboration with other research institutions, technology companies, and healthcare organizations.
Measuring is knowing, but knowing what, exactly?
The measurement question is trickier than it sounds. Health is multidimensional: physical function, cognitive sharpness, mental well-being, social participation, freedom from disease. Different scientists emphasize different components. Some researchers want to define healthspan as the period free from chronic illness; others as the period during which a person retains functional independence. That choice has major consequences for what gets measured and which interventions count as successful.
Biological clocks, such as epigenetic clocks that estimate biological age from DNA methylation patterns, are widely used as a proxy for healthspan, but have not yet been validated well enough to serve as a primary outcome measure in clinical trials. The Buck Institute wants to make progress on that front too: identifying biomarkers that reliably predict how long someone stays healthy, not just how long they live.
Why now?
Demographic pressure is making urgency impossible to ignore. In most Western countries, the share of the population over 65 is growing rapidly, and the costs of age-related care are rising in step. If the ratio of sick years to healthy years does not improve, health systems risk being overwhelmed. Healthspan Horizons explicitly positions itself as a response to that societal challenge — not merely a scientific project, but a policy-relevant initiative.
Whether the program will deliver concrete results that genuinely bridge the gap between the laboratory and everyday practice remains to be seen over the coming years. The Buck Institute carries real scientific authority, but the road from promising research to measurable health gains for the wider population is long and littered with failed translations.