I married DH in my early thirties, he is 15 yrs older, so through him, I am familiar with quite a few older people, his family, etc. I also have my own peer group to compare. It isn't 'science', but it does intrigue me!
I am now 50, so he is retired, just, and has quite a few friends and relatives who are older than him to some extent. In this circle, counting my own 50+ friends, I have definitely noticed a difference.
Many in my own age cohort are suffering various illnesses, from auto immune, diabetes, allergies, etc. My DH's cohort is seemingly much healthier. And when I say that, I mean hiking up mountains, not using cars, zipping about to folk festivals at 70, hanging out in coffee shops or going on holiday.
Not all are fully retired, and a good few still work or volunteer, so they're not sat at home all day.
In my own age group there are a few who work hard, some who work from home, and a few who don't work. My own age group seem to suffer far more issues generally, and it got me wondering (we are generation x).
I did notice that my DH's group had more money, even in retirement, although to be honest, the ones who zip about more and are fitter are just on the basic pension without savings. So I don't know what to conclude.
Just wondered if anyone else had noticed a discrepancy, or if this is just an isolated case. Could be! I did notice that the older ones consume less processed foods, but this might be a very limited viewpoint.