As of 2023, the countries with the highest life expectancy included Switzerland, Japan, and Spain. As of that time, a new-born child in Switzerland could expect to live an average of **** years. Around the world, females consistently have a higher average life expectancy than males, with females in Europe expected to live an average of *** years longer than males on this continent. Increases in life expectancy The overall average life expectancy in OECD countries increased by **** years from 1970 to 2019. The countries that saw the largest increases included Turkey, India, and South Korea. The life expectancy at birth in Turkey increased an astonishing 24.4 years over this period. The countries with the lowest life expectancy worldwide as of 2022 were Chad, Lesotho, and Nigeria, where a newborn could be expected to live an average of ** years. Life expectancy in the U.S. The life expectancy in the United States was ***** years as of 2023. Shockingly, the life expectancy in the United States has decreased in recent years, while it continues to increase in other similarly developed countries. The COVID-19 pandemic and increasing rates of suicide and drug overdose deaths from the opioid epidemic have been cited as reasons for this decrease.

A global phenomenon, known as the demographic transition, has seen life expectancy from birth increase rapidly over the past two centuries. In pre-industrial societies, the average life expectancy was around 24 years, and it is believed that this was the case throughout most of history, and in all regions. The demographic transition then began in the industrial societies of Europe, North America, and the West Pacific around the turn of the 19th century, and life expectancy rose accordingly. Latin America was the next region to follow, before Africa and most Asian populations saw their life expectancy rise throughout the 20th century.

Austria leads the world in physician density with **** practicing doctors per thousand population in 2022, highlighting significant disparities in healthcare access globally. This stark contrast becomes evident when comparing Austria to countries like India, South Africa, and Indonesia, which have less than * physician per 1,000 people. Life expectancy and healthcare access Interestingly, countries with higher physician densities often correlate with higher life expectancies. Switzerland, for instance, boasts both a high physician density of **** per 1,000 people and the highest life expectancy globally at **** years. This relationship underscores the potential impact of accessible healthcare on population health. However, exceptions exist, as evidenced by the United States, where life expectancy has decreased in recent years despite having **** physicians per 1,000 people. Factors such as the COVID-19 pandemic and the opioid epidemic have contributed to this decline. Healthcare expenditure and physician density While physician density is an important metric, it does not always directly correlate with healthcare spending. The United States, for example, has the highest per capita health expenditure among OECD countries, spending over ****** U.S. dollars per person in 2023. This is significantly higher than countries with greater physician densities like Austria and Germany. The U.S. also allocates the largest share of its GDP to healthcare, at **** percent. The United States is an outlier regarding the correlation between healthcare spending, resources and health outcomes.

In 2025, Luxembourg was the country with the highest gross domestic product per capita in the world. Of the 20 listed countries, 13 are in Europe and five are in Asia, alongside the U.S. and Australia. There are no African or Latin American countries among the top 20. Correlation with high living standards While GDP is a useful indicator for measuring the size or strength of an economy, GDP per capita is much more reflective of living standards. For example, when compared to life expectancy or indices such as the Human Development Index or the World Happiness Report, there is a strong overlap - 14 of the 20 countries on this list are also ranked among the 20 happiest countries in 2024, and all 20 have "very high" HDIs. Misleading metrics? GDP per capita figures, however, can be misleading, and to paint a fuller picture of a country's living standards then one must look at multiple metrics. GDP per capita figures can be skewed by inequalities in wealth distribution, and in countries such as those in the Middle East, a relatively large share of the population lives in poverty while a smaller number live affluent lifestyles.