Explainer
Lifespan Is Not Healthspan: What the Global Estimates Show
By 2023 global life expectancy was close to its 2019 level, but healthy life expectancy was still lower. What HALE measures—and what that population estimate cannot predict.
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Analysis & Perspectives
Sourced analysis and differing perspectives, with established evidence, interpretation and speculation clearly distinguished.
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Explainer
What if human life expectancy rose by 50%?
Scaling today's global life expectancy by 1.5 gives roughly 110 years, but the consequences depend on which ages gain survival and whether the added years are healthy.