A dip in life expectancy in recent years, in both Arizona and the U.S., has been attributed to higher mortality among younger groups of people, driven by rising numbers of suicides and alcohol- and drug-related deaths. (Photo by stevekeiretsu/Creative Commons)

U.S., Arizona life expectancy fell, driven by deaths of younger people

After decades of increases, life expectancy in the U.S. ticked down slightly over three recent years, a drop blamed on a rise in “cause-specific” deaths like suicides and drug overdoses. The decline was mirrored in Arizona, but life expectancy remained higher than the national average.