Nonsense. Us was #1 in life expectancy. This year it is on place 51. It's not like racial mix-up in the US changed so much since 1960s that you suddenly dropped 50 places. It's been a process.
Of course, you might have bright spots here and there. Like premature babies are so common for women after 30s and 40s that sure you have to do something about once women started to work and be pregnant much later in life. It's not like we need it as much in Poland where still majority of pregnancies is for women in their 20s.
All I'm saying you are 51 on the list. You may have all kinds of excuses for that, but it's very, very weak.