I recently observed that it seems people who have attained the age of 80 today generally don’t act as old as people who were 80 50 years ago.
As evidence, I look back to my grandparents – only two lived to be 80. My paternal grandmother made it to 80, and seemed “old.” Maybe that was because she bore nine children and was married to a Prussian.
My maternal grandfather lived to 83 – but he seemed “younger.” Some of that might have been the result of living with us younger people – he was jovial and loved to joke around. He also maintained an active lifestyle. He also enjoyed Manhattans and occasional cigars.