I grew up in an airline household in the 60's and remember well what the captains who were approaching 60 years old looked like then.. most of them were rung out, whiskey drinking, Viceroy smoking, and could barely walk a mile without braking a sweat.

It was a much harder life, flying the line in the 40's, 50's when they all started. There were a few exceptions. A neighbor, who was a Delta pilot in '68 could be seen regularly jogging in the mornings in the neighborhood. People would actually ask, why is he running? Usually the reply was, "he was a Marine", and everyone would knowingly nod yes, as if that explained the oddity.

Remember, the average life expectancy of a male in 1960 was 66.