India, May 12 -- A major new study led by Yale School of Public Health (YSPH) revealed big differences in how long people live depending on which U.S. state they are from.
Published in JAMA Network Open, the study highlighted how state policies, living conditions, and the environment have played a key role in shaping Americans' life spans over the past 100 years.
Researchers looked at over 179 million deaths from 1969 to 2020, tracking life expectancy trends by birth year. This method gives a clearer picture of how people's lives have changed over time compared to just looking at death rates year by year.
The team included experts from Yale, the University of Michigan, and the University of British Columbia, showing the broad scope of th...