highest in the world infant mortality rate live births cancer cardiovascular diseases highest suicide rates smoking among Japanese men dementia OECD Japanese
Japan spent 10.74% of its total GDP on healthcare in 2019. In 2020, the overall life expectancy in Japan at birth was 84.62 years (81.64 years for males and 87.74 years for females), the highest in the world; while it had a very low infant mortality rate (2 per 1,000 live births). Since 1981, the principal cause of death in Japan is cancer, which accounted for 27% of the total deaths in 2018—followed by cardiovascular diseases, which led to 15% of the deaths. Japan has one of the world's highest suicide rates, which is considered a major social issue. Another significant public health issue is smoking among Japanese men. However, Japan has the lowest rate of heart disease in the OECD, and the lowest level of dementia among developed countries.
