'Given physical and historical evidence that many people did live long lives in the past, why does the misperception that everyone was dead by the age of 30 or 40 persist?'
Consider the effect of infant mortality on overall age patterns in two contemporary populations with dramatically different life expectancies at birth.is low, at just over 53 years, and infant mortality is high, at almost 105 deaths for every 1,000 children born.is much higher, at over 86 years, and infant mortality is very low—fewer than two infants die for every 1,000 who are born. In both countries, people do survive to very old ages.
Knowing that people often did have long lives in the past might help you feel more connected with the past. For example, you can imagine multigenerational households and gatherings, with grandparents in Neolithic China or Medieval England bouncing their grandchildren on their knees and telling them stories about their own childhoods decades before. You might have more in common with people who lived long ago than you had realized.
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