[ExI] Paleo lifespan
js_exi at gnolls.org
Sun Apr 3 09:18:33 UTC 2011
> From: Kelly Anderson
> Serious question to the paleo dieters... Why would we emulate a diet
> that resulted in a 25 year life span? I understand the bit about us
> being evolved to the diet, but we also were living short fast
> difficult lives at the time. Is that what we want to return to? It
> just seems counter intuitive to me.
That's a common myth, cleanly addressed here:
"The average modal age of adult death for hunter-gatherers is 72 with a
range of 68-78 years. This range appears to be the closest functional
equivalent of an "adaptive" human lifespan."
"Illnesses account for 70 percent, violence and accidents for 20
percent, and degenerative diseases for 9 percent of all deaths in our
"Post-reproductive longevity is a robust feature of hunter-gatherers and
of the life cycle of Homo sapiens. Survivorship to grandparental age is
achieved by over two-thirds of people who reach sexual maturity and can
last an average of 20 years."
It is important to note that to a first approximation, 0% of 'civilized'
people would survive to such a lifespan without the benefit of emergency
rooms, antibiotics, stents, bypasses, joint replacements, and a
pharmacopoeia of medications...let alone contribute positively to the
society in which they live.
In other words, this is a functional human lifespan...and our functional
lifespan, here in 'civilization', is currently *decreasing* even though
absolute lifespan is increasing:
More information about the extropy-chat