Since 1960, life expectancy in the US has extended by a decade!
https://ourworldindata.org/grapher/differences-in-life-expectancy-are-more-regional-than-national?tab=chart&country=~USA
Have to believe it.
When I was a kid in the 50s, very few men made it past 70..lots of effects from WWII service...etc (quite a few women over 70 though).