At one time, Hong Kong was #1 in life expectancy, a surprise to me.
I bet the red meat, fast (fast to die?) food, legalized drugs/pain "killers" and video games kill.
The quality of old age counts too.
China's elderly exercise more even they have less medical facilities/drugs ; check out any square in the morning.
Ours is bad; check out the blood lab in the afternoon in any clinic/hospital.