Both mr. mm and I had grandparents who lived well into their 90’s without all the medical interference we get today.
No vaccines at all for them, and lo and behold, they survived that long.
...grandparents who lived well into their 90’s without all the medical interference we get today.
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Absolutely. Same for us & I’d say the same was true of our great-grandparents who were born in the mid 1800s.
After all, humanity has grown to its present numbers even despite all the conditions that served to lessen their numbers. Hygiene has had a lot to do with it, as well as genetics.