1. Monaco. One of the smallest countries in the world, Monaco also has the UN's longest estimated life expectancy of any country as of 2023. Males in Monaco are expected to live an average of 85.17 years, and females are expected to live an even longer 88.99 years, for an overall average of 87.01 years.
U.S. life expectancy at birth
On average, a person living in the U.S. can expect to live to 76.1 years. Asian people have the longest average life expectancy (83.5 years) and American Indian/Alaska Natives the shortest (65.2 years).
Japanese life expectancy
This low mortality is mainly attributable to a low rate of obesity, low consumption of red meat, and high consumption of fish and plant foods such as soybeans and tea. In Japan, the obesity rate is low (4.8% for men and 3.7% for women).
Italy is the world's healthiest country, according to the CEOWORLD magazine ranking that uses data from the United Nations Population Division, the World Bank, the Lancet study, and the World Health Organisation, with Singapore coming at a close second.
Japan has the highest rate of centenarians, with 0.06% of the population aged 100 or older. Kane Tanaka, the world's oldest woman, also lives in Japan and is 117 years old.
It was found that residents in Glasgow City have the shortest remaining life expectancy compared to any other UK area. According to the research, women living in this area have an average life expectancy from the age of 40 is 39.3 years more — almost 10 years less than women in London's Kensington and Chelsea.
At the end of the study, about 16 percent of the men and about 34 percent of the women survived to the age of 90. In fact, the authors found that women who were taller than 5 feet 9 inches were 31 percent more likely to reach 90, compared to those who were under 5 feet 3 inches.
Life expectancy by country
The country with the highest life expectancy at birth is Spain, with an average of 83.3 years, followed by Sweden (83.1 years), Luxembourg, and Italy (both 82.7 years). The lowest lifespan is predicted in Bulgaria (71.4 years), Romania (72.8 years), and Latvia (73.1 years).
Body temperature is one of the most well known and important factors involved in lifespan; increased body temperature has been shown to negatively associate with longevity (i.e. earlier death) and conversely, lower body temperature is associated with increased longevity and reduced aging.
A Mediterranean diet remains one of the gold standards for living longer and more healthfully. This pattern is characterized by a high intake of fruits and vegetables; whole grains; pulses; healthful fats from nuts, olive oil, and avocado; and herbs and spices. It includes seafood a few times a week.
Social connection appears more important than belief in any system. Which might be why a Pew study awards the religiously unaffiliated (atheists and agnostics) with the second-longest lifespan of any group, finishing just behind Jews and just ahead of Buddhists.
The current life expectancy for U.K. in 2023 is 81.77 years, a 0.15% increase from 2022. The life expectancy for U.K. in 2022 was 81.65 years, a 0.15% increase from 2021. The life expectancy for U.K. in 2021 was 81.52 years, a 0.15% increase from 2020.
Among humans, women's life span is almost 8% on average longer than men's life span. But among wild mammals, females in 60% of the studied species have, on average, 18.6% longer lifespans. The ratio is considerably different for different groups of mammals.
What percentage of the UK population lives to 100? In 2020, 0.02% of the current UK population was aged 100 or higher. ONS data shows over 12,000 people aged 100 or more were female, while just 2,700 were male. Latest estimates show that around one in three of today's babies will live to 100.
Researchers also discovered that “shorter, smaller bodies have lower death rates and fewer diet-related chronic diseases, especially past middle age.” The lifespans of shorter people appear to be longer than their taller counterparts, the paper says.
Lottie's study has also revealed where those supercentenarians live (and lived) – thereby also telling us the parts of the UK where people live the longest. And the place in the UK where people live the longest is… London! Which isn't that surprising, really.
Men and women living in Scotland, the north of England and the South Wales Valleys tend to have a lower than average healthy life expectancy at birth. Those living in the south of England tend to have a higher than average healthy life expectancy at birth.
Life expectancy in the UK 2018/20, by gender and area
Between 2018 and 2020, life expectancy for women in the United Kingdom was highest in the London borough of Kensington and Chelsea, at 87.86 years, while for men it was highest in Westminster, at 84.74.
The average for 2021 based on 196 countries was 9.72 percent. The highest value was in Monaco: 35.97 percent and the lowest value was in Qatar: 1.4 percent. The indicator is available from 1960 to 2021. Below is a chart for all countries where data are available.