Mark it is always interesting to compare generations and lifestyles, and sometimes to be surprised when doing so. I was born in 1940 and my brother in 1937, so we were brought up on wartime rations essentially, augmented I have to admit by my mother getting a job in a school canteen, and bringing home supplementary meat and veges in jamjars - although that really didn’affect me until after the War, but as many would recall rationing lasted long after the War ended.
Yet we were by far the biggest generation born. My brother grew to 6’6" and I staggered finally to 6’1" and was almost the smallest of our group. Before the War life expectancy for working class males was under 70 years of age, but apart from accidental deaths and the incredible amount of childhood ailments surrounding us also causing death - measles,polio, rickets, influenza, TB, infantile paralysis, all of which took very young friends, those of us who survived have lived to ripe old ages, which seems odd? Darwinian?
I was told that my purported father also lived to his mid-90s, and my mother finally succumbed to cancer at age 86, so one has to believe in the gene pool more than anything else in my opinion, but with increased health care along the way as a contributing factor. The odds certainly seemed against us when and where we were born.