Longevity researcher challenges 'healthspan not lifespan' consensus

David Gems tackles a statement repeated so often in aging research it has become dogma: that we should aim to compress morbidity and extend healthspan without increasing lifespan. In this GeroScience commentary, he argues this position is both scientifically naive and potentially harmful to the field. The biological reality is that interventions extending health in laboratory animals almost always extend lifespan too - the two are mechanistically linked through the rate of aging itself. Artificially constraining goals to healthspan alone misunderstands the biology and may limit research directions. Moreover, Gems suggests the sentiment reflects unexamined cultural biases about death and老年 rather than rigorous thinking about what's technically feasible or ethically defensible. While many in the longevity field diplomatically stick to 'healthspan' messaging for political palatability, this piece challenges researchers to be intellectually honest: if you slow biological aging, you will likely extend both healthy years and total years. The debate matters because it shapes research priorities, funding decisions, and public discourse about what aging science should ultimately achieve.