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Life expectancy can be affected by a variety of factors. About 25% of , according to the National Library of Medicine. Health and wellness habits鈥攍ike following a balanced, nutrient-rich diet; not smoking; drinking minimal alcohol; maintaining a healthy weight; and staying physically active鈥攃an , research from the National Institutes of Health shows. While these factors are significant, another important element that you might not have considered is your environment and community.

While life expectancy generally increases annually in the United States鈥攋umping from about 70.8 years old to 77.5 between 1970 and 2022, according to the Centers for Disease Control and Prevention鈥攖his particular metric can vary from state to state or even county to county. In some parts of the country, the average lifespan is getting shorter based on a variety of risk factors on top of health, including like poverty, unemployment, income, and education.

According to a 2020 study from researchers at Penn State, West Virginia, and Michigan State Universities, communities with a higher population density, more fast food restaurants, and a high number of extraction industry-based jobs .

To find out how life expectancy varies within Alaska, used 2024 County Health Rankings & Roadmaps from the University of Wisconsin Population Health Institute to identify the boroughs with the shortest life expectancy. Life expectancy measures the average number of years from birth a person can expect to live and is calculated based on the number of deaths in a given time period and the average number of people at risk of dying during that period. Boroughs with unreliable or insufficient data were excluded from the analysis. Mortality data came from the National Vital Statistics System.

Read on to see if your borough is on the list.