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Why do humans seek longevity?
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Dasville Offline
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Post: #21
RE: Why do humans seek longevity?
Has to be the brain, right?
05-11-2018 11:42 AM
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ummechengr Offline
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Post: #22
RE: Why do humans seek longevity?
From a purely biological side, I'd submit that longevity is simply a holdover of our animal instinct to just survive somehow. We just happen to have the brain capacity and communication skills required to get better at it generation after generation through the development of medical technology/nutritional information as compared to other species.

Caveat: I suspect a big chunk of the reason for such shorter life expectancy prior to the 1950s or so, is infant mortality. If there was a way to exclude deaths under 5yrs, I'd imagine life expectancy may not be too far off from what it is today. Averages are tough like that.

[Image: Human-Life-Expectancy2.jpg]
(This post was last modified: 05-16-2018 10:46 AM by ummechengr.)
05-16-2018 10:37 AM
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ummechengr Offline
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Post: #23
RE: Why do humans seek longevity?
As suspected (at least from one small study):
Quote:Rowbotham and Clayton (JRSM 2008;101:454–62) make a very important point when they draw attention to the life expectancy at birth compared to life expectancy at 5+ years of age.1 They state ‘… life expectancy in the mid-Victorian period was not markedly different from what it is today. Once infant mortality is stripped out, life expectancy at 5 years was 75 for men and 73 for women.’ In 1995 Griffin2 produced a comparison of life expectancy of mature men (15+years of age) at different points in history over the last 3000 years ( Table 1).
MORE HERE
05-16-2018 10:54 AM
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Dasville Offline
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Post: #24
RE: Why do humans seek longevity?
(05-16-2018 10:54 AM)ummechengr Wrote:  As suspected (at least from one small study):
Quote:Rowbotham and Clayton (JRSM 2008;101:454–62) make a very important point when they draw attention to the life expectancy at birth compared to life expectancy at 5+ years of age.1 They state ‘… life expectancy in the mid-Victorian period was not markedly different from what it is today. Once infant mortality is stripped out, life expectancy at 5 years was 75 for men and 73 for women.’ In 1995 Griffin2 produced a comparison of life expectancy of mature men (15+years of age) at different points in history over the last 3000 years ( Table 1).
MORE HERE

What I have seen is that today’s “science” is trying to get us to live a “healthspan” of 100-110years old. Seems to me they are pitching trading one Pyramid for another. Just my opinion but once your borne and survive past 5, the damage is already done. You can’t believe in environmental change and it’s impact and also believe in not being screwed. Our Grandmother’s diet has f’d us up. Totally cracks me up to see someone scream about a factory farm cow. Like you aren’t already screwed.
What a paradox. Soooo many people trying to get pregnant but can’t and so many people having abortions. So many people damning the church for judging and yet so many people denying the impact of plants on sex related matters. If loving you is wrong I don’t want to be right.
07-14-2018 05:28 PM
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Dasville Offline
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Post: #25
RE: Why do humans seek longevity?
Is it possible that Bill Nye has argued for the proliferation of homosexuality?
I have no idea but if the environment has immediate impact, it’s a topic he has raised.
07-14-2018 06:24 PM
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Dasville Offline
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Post: #26
RE: Why do humans seek longevity?
Perhaps the events chronicled in the Bible happened further back than some would believe and perhaps environmentalists science is much less mature than others would have you believe.
Which one has more impact on longevity? It’s a good question.
07-14-2018 09:19 PM
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JRsec Offline
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Post: #27
RE: Why do humans seek longevity?
(02-24-2018 10:33 AM)shere khan Wrote:  
(02-22-2018 10:05 AM)Dasville Wrote:  At what point in human existence did we decide to modify behavior to extend life?
When did the "old" become important? Flys live a month. 15-20yrs for dogs and cats.
Why don't plants live forever?

Something something something about r and k reproductive fitness. Neanderthals took care of crippled and buried their dead with flowers. Knowledge, wisdom being useful past ones reproductive cycle....deers can walk 30 minutes after being born, humans children live with you until you they are 30.

The answer is in there somewhere.

Reproductive fitness, survival of the species.

Before written histories were passed down it was the oral transmission of the aged that were necessary for teaching the young the cycles in life that exceed the experiences of just one generation. So yeah, survival of the species is a big part of it. That and the younger Neanderthals had all invested in the assisted living homes and feared that to dispel them would sabotage their own retirements.
07-14-2018 09:30 PM
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Dasville Offline
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Post: #28
RE: Why do humans seek longevity?
How in “the world” is one of the “Blue Zones” located in the United States?
07-15-2018 11:14 AM
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Dasville Offline
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Post: #29
RE: Why do humans seek longevity?
(07-14-2018 09:30 PM)JRsec Wrote:  
(02-24-2018 10:33 AM)shere khan Wrote:  
(02-22-2018 10:05 AM)Dasville Wrote:  At what point in human existence did we decide to modify behavior to extend life?
When did the "old" become important? Flys live a month. 15-20yrs for dogs and cats.
Why don't plants live forever?

Something something something about r and k reproductive fitness. Neanderthals took care of crippled and buried their dead with flowers. Knowledge, wisdom being useful past ones reproductive cycle....deers can walk 30 minutes after being born, humans children live with you until you they are 30.

The answer is in there somewhere.

Reproductive fitness, survival of the species.

Before written histories were passed down it was the oral transmission of the aged that were necessary for teaching the young the cycles in life that exceed the experiences of just one generation. So yeah, survival of the species is a big part of it. That and the younger Neanderthals had all invested in the assisted living homes and feared that to dispel them would sabotage their own retirements.

Just my opinion as are all my post, but you have touched on a topic I am interested in:
Were the “history tellers” and “story tellers” the same in olden times? Were they Reporters or Lawyers or Historians? The dynamics are interesting to me.
07-16-2018 10:16 AM
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Dasville Offline
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Post: #30
RE: Why do humans seek longevity?
CRAP! I forgot the idiot and the Shamans.
Well, whoever ends up telling the story “live long and prosper”.
I would say it in Vulcan but I don’t know how.
(This post was last modified: 07-16-2018 11:27 AM by Dasville.)
07-16-2018 11:26 AM
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Dasville Offline
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Post: #31
RE: Why do humans seek longevity?
Turtles live a long time. Older than humans. We should learn how they live so long.

http://www.reptilesmagazine.com/Jonathan...ther-Male/
08-02-2018 09:40 AM
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