The World Health Organization has published updated Global Health Estimates covering 2000 to 2023, and they show a world that has largely recovered its pre-pandemic life expectancy while shifting steadily towards long-term, chronic illness. According to the WHO release of 2 October 2026, global life expectancy reached 73.3 years in 2023, almost matching the 73.4 years recorded in 2019.
Recovery Is Uneven
Healthy life expectancy, which measures the years a person can expect to live in good health, has recovered more slowly. The WHO said it stood at 62.8 years in 2023, still 0.4 years below its 2019 level. The gap between how long people live and how long they live well, in other words, has not yet closed.
A Changing Pattern of Disease
The estimates point to a marked shift in what people die from. Noncommunicable diseases now account for 74% of global deaths, up from 58% in 2000, according to the WHO. For the first time, communicable diseases fell below half of all deaths in low-income countries, which the agency described as a sign of a broader epidemiological transition.
Cardiovascular disease remains the largest burden: ischaemic heart disease caused around 9.5 million deaths in 2023, the WHO estimated. Dementia has climbed from 19th place among causes of death in 2000 to fifth, with deaths roughly tripling over the period. Mental health conditions also feature prominently. Between 2019 and 2023, the healthy life lost to depression rose by about 20% and that lost to anxiety disorders by nearly 45%, together accounting for an estimated 110 million years of healthy life lost in 2023. Drug use disorders show sharp regional contrasts, with the Americas recording the largest increases in mortality and the Western Pacific substantial declines, the WHO said.
Why It Matters
The figures suggest that the main health challenge for many countries is no longer an acute infectious emergency but the long-term management of heart disease, diabetes, dementia and mental illness. Those conditions demand sustained primary care, affordable medicines, screening and social support, rather than short campaigns, and they fall on ageing populations and on health budgets that are already stretched. For low- and middle-income countries in particular, the data indicate that systems built around infectious disease will need to adapt. The estimates also offer governments a common evidence base for deciding where to direct scarce funds in the years ahead.
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