Countries with the very low life expectancy are primarily in Sub-Saharan Africa, with Nigeria, Chad, and Lesotho consistently ranking at the bottom, often around 53-55 years, due to challenges like poverty, disease, and limited healthcare access, though Afghanistan has also seen extremely low figures.
So, what country has the lowest life expectancy? According to UN data, Somalia ranks at the bottom, with an average life expectancy of just 59 years. Most of the countries with the shortest lifespans are in sub-Saharan Africa, where a combination of interrelated challenges significantly impacts public health.
Key statistics
Life expectancy at birth was 81.1 years for males and 85.1 years for females in 2022–2024, reflecting no change for either males or females from the previous year (2021–2023).
1. Mayflies. Mayflies (order Ephemeroptera) are aquatic insects known for having the shortest lifespans of any creature in the animal kingdom—they typically live for only one day.
Asian Americans enjoy the longest life expectancy of any racial or ethnic group (87.3 years) in the U.S. today. Latinos enjoy the 2nd longest life expectancy of any racial or ethnic groups in the U.S. today.
Whites are usually taken as the standard against which other groups are compared, but they are not necessarily in the best health. Hispanics appear to be healthier than whites on a number of measures, though not all. Asians are generally in better health than any other group (Hummer et al., 2004).
4 Top Ways to Live Longer
Smoking turns out to be the singlemost factor in reducing life expectancy. On average, men lose nine years and women seven years of life to cigarette smoking. We all know that it is unhealthy to spend one's life as an overweight “couch potato" in front of the TV, drinking beer and smoking cigarettes.
I have named the mayfly Dolania americana the shortest lived among the Ephemeroptera with females typically living for less than five minutes (Sweeny & Vannote 1982).
This is referred to as the "maximum life span", which is the upper boundary of life, the maximum number of years any human is known to have lived. Although maximum life expectancy is around 125 years, genetic enhancements could allow humans to live for a maximum of 245 years, according to InsideTracker.
Dementia (including Alzheimer's disease) is now Australia's leading cause of death overall, closely followed by ischaemic heart disease, with the gap narrowing as the population ages; however, coronary heart disease remains the top killer for males, while dementia leads for females. Other major causes include cerebrovascular disease (stroke), lung cancer, and chronic lower respiratory diseases (COPD).
In addition, articles comparing life expectancy of athletes compared to that of nonathletes were reviewed. Results of 13 studies describing eight different cohorts suggest that regular physical activity is associated with an increase of life expectancy by 0.4 to 6.9 years.
The Australian Capital Territory has the highest life expectancy for men at 82 years, and women at 85.8 years. The Northern Territory has the lowest life expectancy for both men (77 years) and women (80.7 years ). Find out more about Australian life expectancy at https://brnw.ch/21wXnjq.
The top 10 healthiest countries in the world
It's all about finding balance. The PLOS Medicine study found 3 food groups that you should consume less of to live longer. These are sugar-sweetened drinks, refined grains, and red and processed meats. Lucky for us, there's often an easy healthier swap.
RESULTS. Men aged 92 to 93 had an overall 6.0% chance of surviving to 100 years, whereas the chance for women was 11.4%. Being able to rise without use of hands increased the chance for men to 11.2% (95% confidence interval (CI) = 7.7–14.7) and for women to 22.0% (95% CI = 18.9–25.1).
Deep-Sea Sponges
A deep-sea sponge can break the records of all living animals. It can live up to a thousand years. In fact, a study revealed that the oldest of the sponge samples collected lived for 11,000 years. During this time, the earth has just recovered from the Ice Age.
Elephants hold the record for the longest pregnancy in the animal kingdom, with a gestation period of 18 to 22 months! Newborn elephant calves weigh a massive 200 to 250 pounds, making them the largest and heaviest land babies on Earth.
Women who weighed less at age 20 and put on less weight as they aged were more likely to live longer than heavier women. Height played a major factor: the study found women who were taller than 5 feet 9 inches were 31% more likely to live into their 90s than women who were less than 5 feet 3 inches.
Alcohol: Drinking too much alcohol can dehydrate and damage your skin over time, leading to signs of premature aging. Poor sleep: Studies show that low quality (or not enough) sleep makes your cells age faster. Stress: When you're stressed, your brain pumps out cortisol, a stress hormone.
“Smoking is one of the most harmful things people can do to themselves,” Dr. Maniar says. Blood flow drops, slashing oxygen that fuels the heart, which compensates by spiking blood pressure, heart rate and rhythm, and can lead to hardened and narrowed arteries and blood clots causing cardiovascular disease.
A peanut butter and jelly sandwich (PB&J) adds about 33 minutes to your healthy lifespan per serving, according to a University of Michigan study that measured life expectancy impacts of over 5,850 foods using the Health Nutritional Index (HNI). This sandwich tops the list for adding time, with nuts and seeds also being highly beneficial (around 25 mins) and processed items like hot dogs subtracting time.
The studies above show that even one or two naps per week, for as little as 30 minutes, can have a positive effect on your cognitive performance and longevity. 1–3 PM is prime nap territory – it aligns with your circadian dip and avoids interference with nighttime sleep.
The eight lifestyle changes that could extend your life