Healthspan—the years lived in good health—has declined in Canada despite increased longevity, with citizens now facing roughly two decades of chronic disease or cognitive decline. This gap between how long we live and how well we live represents the actual crisis in aging, one addressed far less by research and healthcare spending than lifespan extension.
Key Points
- Canadian healthspan declined to 67 years despite 22-year lifespan increase
- Healthcare spending prioritizes treatment over prevention at 12:1 ratio
- Functional independence in older age outweighs chronological lifespan extension
Longevity Analysis
The pursuit of maximum lifespan without corresponding investment in preserving physical function, cognitive clarity, and metabolic resilience produces a hollow outcome. A meaningful longevity strategy must prioritize the maintenance of core capacities—mobility, strength, mental acuity, independence—across the decades before disease onset. This reframes the question from "how long can we extend life" to "how long can we preserve the body's ability to perform its intended functions." Prevention-focused research paired with movement science and lifestyle intervention offers a more tractable path than treating advanced disease.
Original published by The Conversation - Longevity, by Stuart Phillips, Professor, Kinesiology, Tier 1 Canada Research Chair in Skeletal Muscle Health, McMaster University.