People probably just didn’t live as long back then and so dementia didn’t have time to surface. Or it did but people lived in tight knit small groups and managed it.

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ath3nd 6 days ago | parent [-]

Just so we are clear, are you denying that air pollution plays a role in developing dementia?

	▲	api 6 days ago \| parent [-]
		No, agreeing that it may have been worse when people slept with camp fires in tents but that we may not have noticed due to shorter life spans.