I’m not sure there is sufficient data to support your hypothesis.
Famines in the modern world are rare, they still exists in some places but those places aren’t exactly stable and have high life expectancy to begin with.To be clear, mine is the null hypothesis. I suggest that no extraordinary or new information can be gleaned from the life expectancy of Holocaust survivors at present. This constrasts with any claim that this information provides a possible bit of support for the notion that starvation can lead to extended life expectancy.
Famines in historic times were both not rare, periodic, and there isn’t nearly enough data to show if there was any benefit to the survivors other than less competition for resources after the famine has subsided.
Lenin’s USSR between ‘21-‘22 (9 million dead), China in ‘27 (About 3 million dead), Stalin’s Holodomor of Ukraine ‘32-‘34 (8 million dead), Henan, China in ‘43 (5 million dead), Bengal ‘43 (2-3 million dead), Mao’s China ‘58-‘62 (10-30 million dead), The DPRK ‘95-‘99 (about 3 million dead and the lasting negative impact is well studied), and many more from Biafra to Dust Bowl era Oklahoma.
I’m not sure there has been an event like the holocaust where so many people went on to live what essentially became modern western life with all the advantages it provides as far as life expectancy goes.
I agree that it’s hard to find a comparison of people leading a “modern Western life,” but plenty of Holocaust survivors didn’t either. Moreover the negative impacts of starvation are well documented, and “longer life expectancy” isn’t in it. Arrayed against that we have a handful of mouse studies, those very creatures we can cure of cancer... for all that doesn’t apply to us.