New study uncovers significant variations in life expectancy across U.S. states

New study uncovers significant variations in life expectancy across U.S. states 
Bioengineer.org - Health; by Bioengineer; 5/7/25 
"A Century of Unequal Longevity: How Geography and Policy Sculpt Life Expectancy in the United States"
In an extensive new investigation led by the Yale School of Public Health (YSPH), researchers have unveiled profound disparities in life expectancy trends throughout the United States over the last hundred years. This groundbreaking study reveals how the interplay between public health policies, social environments, and regional factors critically shapes the longevity of populations across states and the nation’s capital, Washington, D.C. ... The findings are striking: while states in the Northeast and West Coast, alongside the District of Columbia, achieved remarkable gains in life expectancy over the twentieth century, several Southern states remained largely stagnant. Specifically, females born in some parts of the South experienced life expectancy increases of less than three years between 1900 and 2000.