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Career longevity·Research summary·7 min
Healthspan over lifespan
The goal was never just more years. It's more good years, and biology gives you levers to pull now.
March 2, 2026
Lifespan is how long you live. Healthspan is how long you live well. The gap between them is where most of the suffering, and most of the opportunity, sits.
Your biology reveals which levers matter most for your healthspan, so you spend effort where it actually moves the needle.