South Korea

South Korea records a life expectancy of 83.3 years, driven by universal health insurance (NHI) coverage and a traditional diet rich in fermented vegetables, seafood, and low-fat protein. The country has one of the highest densities of hospitals and physicians in Asia, with rapid adoption of digital health technologies improving diagnostic accuracy. South Korea's OECD obesity rate of just 6.7% reflects deeply ingrained cultural attitudes toward balanced eating.