Height >>> Lifespan ...... WAS: Re: insulin and IGF-I, health,

[Guest guest]

Hi JW:

Here is one paper that seems to review the relationship between

lifespan and logevity:

" Is height related to longevity?

Samaras TT, Elrick H, Storms LH.

Reventropy Associates, 11487 Madera Way, San Diego, CA 92124-

2877, USA. SamarasTT@...

Over the last 100 years, studies have provided mixed results on the

mortality and health of tall and short people. However, during the

last 30 years, several researchers have found a negative correlation

between greater height and longevity based on relatively homogeneous

deceased population samples. Findings based on millions of deaths

suggest that shorter, smaller bodies have lower death rates and fewer

diet-related chronic diseases, especially past middle age. Shorter

people also appear to have longer average lifespans. The authors

suggest that the differences in longevity between the sexes is due to

their height differences because men average about 8.0% taller than

women and have a 7.9% lower life expectancy at birth. Animal

experiments also show that smaller animals within the same species

generally live longer. The relation between height and health has

become more important in recent years because rapid developments in

genetic engineering will offer parents the opportunity to increase

the heights of their children in the near future. The authors contend

that we should not be swept along into a new world of increasingly

taller generations without careful consideration of the impact of a

worldwide population of taller and heavier people.

PMID: 12586217 "

Rodney.

--- In , " jwwright " <jwwright@e...>

wrote:

> That's been my observation, too, but I once lost a discussion about

that.

> And I can't make myself shorter, gracefully.

>

> Of course we could make our children shorter with less food and a

lot of legal fees. Walford suggested " we don't want to raise a

generation of short people " (paraphrased).

>

> Still, I don't have or recall articles relating lifespan to

pygmies, as we have Eskimos and lifespan, eg.

>

> I also have heard dwarves are short lived, as are giants, but again

no articles.

> Perhaps the diff, in dwarves as opposed to pygmies, is there is a

gene that makes the Pygmies short whereas the dwarves suffer a gene

problem, not necessarily transmitted. (just guessing).

>

> In any case, I feel more sure each day that IGF-1 is not the factor

that causes cancer any more than any other factor of which a cancer

takes advantage.

> EG, If I measure my IGF-1and find it higher than average, would I

be happy as I would if I measured my bone density and found it above

average? Secondly, if I really wanted to lower the system level how

would I do that? I could eat less and starve my weight and bone down,

but will that make me live longer?

> Notice I make a distinction between a " system " level as in changing

the thermostat. A lowering by food lowering would not be lowering the

system's set value, merely changing the short term IGF-1.

> If I went back to eating more food the IGF-1 would come back up to

it's system level, unless I triggered an anorexic point.

> If we are keeping IGF-1 low by CR, we may be able to live longer,

but not if we impact osteo, IMO. Like weight, I want it to be on the

low side perhaps, but I think the IGF-1 level will go down with

weight loss anyway, because the system is set that way. After all, it

is a hormone with a feedback control system, actually two if you

include the CNS.

>

> Regards.

>

> [ ] Re: insulin and IGF-I, health,

>

>

> Hi JW:

>

> Oooops, sorry. Correction, shorter people live longer than tall

> people ........... I believe.

>

> Rodney.

>