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Human Lifespans Nearly Constant for 2,000 Years
Live Science ^ | Aug 21, 2009 | Benjamin Radford

Posted on 08/22/2009 1:40:22 PM PDT by decimon

The Centers for Disease Control and Prevention, often the harbinger of bad news about e. coli outbreaks and swine flu, recently had some good news: The life expectancy of Americans is higher than ever, at almost 78.

Discussions about life expectancy often involve how it has improved over time. According to the National Center for Health Statistics, life expectancy for men in 1907 was 45.6 years; by 1957 it rose to 66.4; in 2007 it reached 75.5. Unlike the most recent increase in life expectancy (which was attributable largely to a decline in half of the leading causes of death including heart disease, homicide, and influenza), the increase in life expectancy between 1907 and 2007 was largely due to a decreasing infant mortality rate, which was 9.99 percent in 1907; 2.63 percent in 1957; and 0.68 percent in 2007.

But the inclusion of infant mortality rates in calculating life expectancy creates the mistaken impression that earlier generations died at a young age; Americans were not dying en masse at the age of 46 in 1907. The fact is that the maximum human lifespan — a concept often confused with "life expectancy" — has remained more or less the same for thousands of years. The idea that our ancestors routinely died young (say, at age 40) has no basis in scientific fact.

(Excerpt) Read more at livescience.com ...


TOPICS: Health/Medicine; Science; Society
KEYWORDS: cdc; expectancy; godsgravesglyphs; life; lifeexpectancy; longevity; science
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Much true but I don't believe he's telling the full story.
1 posted on 08/22/2009 1:40:22 PM PDT by decimon
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To: decimon

What’s missing?


2 posted on 08/22/2009 1:43:40 PM PDT by USFRIENDINVICTORIA
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To: decimon

As a graveyard (and general history) conniseur, I can assure it’s true.

Many people died at ancient ages very long ago, such as in their 80s back in the 1700s. The problem was many died in infancy (tons) up until probably mid-1900s (I have an uncle that died as an infant/toddler in the ‘30s). They’re all over the graveyards. And that’s just regular death.

I think the problem - as usual - is that they’re using averages rather than medians.

Meanwhile, I don’t believe much that there’s been a decline in murder. In some places, sure, but not in the cities!


3 posted on 08/22/2009 1:45:55 PM PDT by the OlLine Rebel (Common sense is an uncommon virtue./Technological progress cannot be legislated.)
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To: decimon

Plenty died in their 40s and 50s from diseases we can now control, such as diabetes.


4 posted on 08/22/2009 1:50:48 PM PDT by proxy_user
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To: USFRIENDINVICTORIA
What’s missing?

I believe that modern medicine has reduced more than infant mortality. In fact, he gives example in the second paragraph. Yet he concentrates on infant mortality and maximum human lifespan.

Maximum human lifespan may have remained roughly the same but I think there is a higher percentage of people reaching that maximum.

5 posted on 08/22/2009 1:52:23 PM PDT by decimon
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To: decimon
I wish EVERYBODY knew this simple fact. I have often debated with people about various issues, when they bring up the "average life expectancy was 40"(or some other low number). I've had this happen here on FreeRepublic even.

A properly functioning human body is probably good for 80-90 years. Take away infant mortality, and the median life expectancy has probably not changed all that much.

We DO have better medicines and what not, but then again, our lifestyles as of late are making us die even sooner than we should, if we didn't have such poor lifestyle habits.

6 posted on 08/22/2009 1:57:09 PM PDT by Paradox (ObamaCare = Logan's Run ; There is no Sanctuary!)
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To: proxy_user

Yes, true, but actually probably the biggest threat outside an outbreak was pregnancy/childbirth. It is a terrible thing.

You’ll see lots of young WOMEN in the graveyards, about 20-30. Sometimes along with their “infant son”.

Bottom line is people who were pretty healthy and didn’t get unlucky other ways (accidents and murder) could make it up to the 80s.


7 posted on 08/22/2009 2:01:00 PM PDT by the OlLine Rebel (Common sense is an uncommon virtue./Technological progress cannot be legislated.)
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To: the OlLine Rebel

That people did not age any sooner, as the “old at 46” myth implies, is apparent when we look at the ages of the first 10 presidents at the time they first took office:

Washington-57
Adams-61
Jefferson-57
Madison-58
Monroe-58
John Quincy Adams-57
Andrew Jackson-62
Martin Van Buren-54
William Harrison-68
John Tyler-50

The average for this group (@58) is considerably higher in fact than for the last 10 presidents (@53).

Obama-47
GW Bush-54
Clinton-46
GHW Bush-54
Ronald Reagan-69
Jimmy Carter-52
Gerald Ford-61
Richard Nixon-56
Lyndon Johnson-55
John Kennedy-43


8 posted on 08/22/2009 2:05:07 PM PDT by atomic conspiracy (Victory in Iraq: Worst defeat for activist media since Goebbels shot himself.)
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To: Paradox
Maximum likely quantity has not changed, but quality certainly has. From hip replacements to painkillers to arthritis drugs, most elderly today are far more comfortable (and that's not even including air conditioning) than their elderly ancestors. ObamaCare Jokes Obama Jokes
9 posted on 08/22/2009 2:11:50 PM PDT by tbw2 (Freeper sci-fi - "Humanity's Edge" - on amazon.com)
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To: decimon

I can count on 2 hands all relatives that have died under 90 in the last 200 years.

I have 4 that have lived past 100.

My Great Great Grandfather died @ 104 and I met my Great Grandfather when he was 100 that died at 101.


10 posted on 08/22/2009 2:12:26 PM PDT by dalereed
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To: decimon

I’m thinking not. Certainly, if you take infant mortality out of the mix, the average life span increases. However, people routinely died of infectious diseases in the past that we now consider much less of a threat. My father’s father died at age 32 of pneumonia after having the flu. This was before antibiotics. Clean water and sewer systems also decreased deaths from diseases.
I think the point of the article is that the human life span (that is, what you could live to be if you didn’t die from infectious disease, accident, etc) have not changed much. I think it’s interesting that in the Bible, God gave man a lifespan of about 120 years. That seems to be the upper limit.


11 posted on 08/22/2009 2:16:59 PM PDT by brytlea (Jesus loves me, this I know.)
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To: dalereed

You have fantastic genes behind you!


12 posted on 08/22/2009 2:19:27 PM PDT by brytlea (Jesus loves me, this I know.)
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To: brytlea
I think it’s interesting that in the Bible, God gave man a lifespan of about 120 years.

I've seen that figure in non-biblical context. A guesstimate of what would be normal without disease.

13 posted on 08/22/2009 2:25:13 PM PDT by decimon
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To: the OlLine Rebel

Deaths during childbirth also served to lower life expectancy.


14 posted on 08/22/2009 2:25:13 PM PDT by MediaMole
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To: decimon
But the inclusion of infant mortality rates in calculating life expectancy creates the mistaken impression that earlier generations died at a young age; Americans were not dying en masse at the age of 46 in 1907. The fact is that the maximum human lifespan — a concept often confused with "life expectancy" — has remained more or less the same for thousands of years.

Probably longer than that. But the statement is misleading. What we have today is a system of Mulligans. Got appendicitis? No problem, we'll do a simple operation and presto, you get a mulligan to keep trying for that maximum age. Got a bad bacterial infection? No problem take some penicillin and take another Mulligan. I'm 44 and have already gotten two Mulligan's (once at infancy and once at 24) for easily treatable problems that would most likely have killed me 100 years ago.

15 posted on 08/22/2009 2:26:22 PM PDT by SampleMan (Socialism enslaves you & kills your soul.)
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To: decimon

Yes, it’s interesting how rarely anyone lives past 120, I think the oldest verified was somewhat over 122. That seems about the limit the human body was designed to last. I know people who have lived into their 90s, but they all seemed to start failing fairly quickly at that point. My 84 year old Dad is hale and hardy and plans to live to 100. A very good reason to not want Obamacare.


16 posted on 08/22/2009 2:28:33 PM PDT by brytlea (Jesus loves me, this I know.)
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To: SampleMan

That’s true. I had pneumonia as a baby and almost died, and if not for an oxygen tent and antibiotics I’m sure I would not be here now. I would probably also have died in childbirth with my first son. So, I guess I’ve had 2 mulligans myself! Of course, I just consider them blessings! ;)


17 posted on 08/22/2009 2:30:17 PM PDT by brytlea (Jesus loves me, this I know.)
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To: decimon

hundreds of times more credit is due to the non medical sciences. For exponential improvements in sanitation, home and workplace safety, affordable nutrition, and on and on and on,


18 posted on 08/22/2009 2:31:54 PM PDT by nkycincinnatikid
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To: the OlLine Rebel
Don't forget to include the deaths from yellow fever, typhoid, the plague, small pox, venereal diseases, ruptured appendixes, infected wounds, dehydration from the flu, child birth, untreated diabetes, cancer, heart disease, blood pressure, etc., etc.

And the most overlooked modern medical care that saves many lives...dentistry.

Some people certainly lived to ripe old ages in the past, but not nearly as many as today, and it is not just a matter of infant deaths.

19 posted on 08/22/2009 2:33:10 PM PDT by SampleMan (Socialism enslaves you & kills your soul.)
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To: nkycincinnatikid
...hundreds of times more credit is due to the non medical sciences.

A gross exageration and a bit of forgetfulness about medical science. Draining swamps and spraying mosquitoes WAS led by medical science.

I'm not sure traumatic injuries have been reduced at all, however, I am certain that treating them has improved to the point that almost no one dies from a compound fracture now.

Sanitation also came out of the medical sciences.

20 posted on 08/22/2009 2:39:59 PM PDT by SampleMan (Socialism enslaves you & kills your soul.)
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