South Korea surpasses Japan with the world's highest life expectancy at 86.3 years, driven by universal healthcare and advanced medical technology.
South Korea has surpassed Japan to achieve the world's highest national life expectancy at 86.3 years, according to new data published in The Lancet. The milestone reflects decades of investment in universal healthcare, public health infrastructure, and medical research that have transformed the country's health landscape within a single generation.
In 1960, South Korea's life expectancy was just 52.4 years, placing it among the lowest in Asia. The remarkable 34-year gain over six decades represents one of the fastest improvements in population health in recorded history. By comparison, it took the United Kingdom approximately 150 years to achieve a similar increase.
Several factors contribute to South Korea's longevity leadership. The national health insurance system, which covers the entire population with a combination of employer and government contributions, ensures universal access to both preventive and curative healthcare. Out-of-pocket costs are among the lowest in the OECD, removing financial barriers to seeking care.
South Korea also has one of the most technologically advanced healthcare systems in the world. The country ranks first globally in the number of MRI and CT scanners per capita, and its cancer screening programs are among the most comprehensive. Five-year survival rates for stomach cancer, thyroid cancer, and colorectal cancer are the highest in the world.
Public health campaigns have dramatically reduced risk factors for premature death. The adult smoking rate has declined from 35% in 2000 to under 15% in 2025, one of the fastest reductions globally. Alcohol consumption has also declined, particularly among younger adults, partly due to changing social norms and workplace culture reforms.
The aging of the population does present challenges. South Korea now has the world's lowest fertility rate at 0.72 births per woman, raising concerns about the sustainability of its healthcare and pension systems. The government has responded with policies to encourage immigration, extend the working age, and increase automation in healthcare delivery.
Dr. Majid Ezzati of Imperial College London, who co-authored the Lancet study, noted that South Korea's trajectory demonstrates that rapid gains in population health are possible with sustained political commitment and evidence-based policy. He highlighted the country's integrated approach, combining clinical medicine, public health, and social policy, as a model for other nations.