[ RadSafe ] Meat and two neutrons -- the key to a longer life...
Earley, Jack N
Jack_N_Earley at RL.gov
Mon Apr 16 10:06:53 CDT 2007
I'm familiar with the studies that purport to show that reducing your
weight as much as 30 percent below "normal" increases longevity, but
what I'm actually referring to is that two-thirds of the U.S. population
is overweight, and half of those are obese. Since a pot belly increases
a man's risk of heart disease by about 40 percent, it's a simple matter
(to me) to "eat fewer calories." I don't think that being extreme in
anything, including caution, is wise.
From: John Jacobus [mailto:crispy_bird at yahoo.com]
Sent: Sunday, April 15, 2007 1:43 PM
To: Earley, Jack N; radsafe at radlab.nl
Subject: RE: [ RadSafe ] Meat and two neutrons -- the key to a longer
That has not been demonstrated in humans. Restricted calories does
extend the life of mice. Nevertheless, as noted in
'"With mice, if you restrict their caloric intake by 10 percent, they
live longer than if they have unlimited access to food," Phelan said.
"If you restrict their intake by 20 percent, they live even longer, and
restrict them to 50 percent, they live longer still; but restrict their
intake by 60 percent and they starve to death."'
Certainly, obese humans have many more health problems, but restricting
your calorie intake about 2000 calories appears to improve health but
not how long you will live.
If you are looking for a magic pill or program that will allow you to
live to be 100, I would first look at how long your parents lived and
what is your current lifestyle.
--- "Earley, Jack N" <Jack_N_Earley at RL.gov> wrote:
> Wouldn't it be easier to eat fewer calories and take a DHEA
> . . ?
> Jack Earley
> Health Physicist
> -----Original Message-----
> From: radsafe-bounces at radlab.nl
> [mailto:radsafe-bounces at radlab.nl] On
> Behalf Of John Jacobus
> Sent: Thursday, April 12, 2007 1:01 PM
> To: radsafe at radlab.nl
> Subject: Re: [ RadSafe ] Meat and two neutrons -- the key to a longer
> General comment: nematode worms are not humans.
> Studies conducted in animals do not always reflect the response in
> humans. Only about 10% of studies in biomedical research translate to
> the same effect in humans.
> --- ROY HERREN <royherren2005 at yahoo.com> wrote:
> > Public release date: 25-Mar-2007
> > Contact: SCI Press Office
> > press at soci.org
> > 44-079-313-15077
> > Society of Chemical Industry
> > Meat and two neutrons -- the key to a longer
> life Long-life isotopes
> > of a different variety Indulging in an
> isotope-enhanced steak or
> > chicken fillet every now and again could add as
> much as 10 years to
> > your life. Scientists have shown for the first
> time that food enriched
> > with natural isotopes builds bodily components
> that are more resistant
> > to the processes of ageing. The concept has been
> demonstrated in worms
> > and researchers hope that the same concept can
> help extend human life
> > and reduce the risk of cancer and other diseases
> of ageing, reports
> > Marina Murphy in Chemistry & Industry, the
> magazine of the SCI.
> > A team led by Mikhail Shchepinov, formerly of
> Oxford University, fed
> > nematode worms nutrients reinforced with natural
> isotopes (naturally
> > occurring atomic variations of elements). In
> initial experiments,
> > worms' life spans were extended by 10%, which,
> with humans expected to
> > routinely coast close to the centenary, could add
> a further 10 years
> > to human life.
> > Food enhanced with isotopes is thought to
> produce bodily
> > constituents and DNA more resistant to detrimental
> processes, like
> > free radical attack. The isotopes replace atoms in
> susceptible bonds
> > making these bonds stronger. 'Because these bonds
> are so much more
> > stable, it should be possible to slow down the
> process of oxidation
> > and ageing,' Shchepinov says.
> > The isotopes could be used in animal feed so
> that humans could get
> > the "age-defying" isotopes indirectly in steaks or
> chicken fillets,
> > for example, rather than eating chemically
> enhanced products
> > themselves. Shchepinov says an occasional top-up
> would be sufficient
> > to have a beneficial effect.
> > Ageing experts are impressed with the isotopic
> approach. Aubrey de
> > Grey, the Cambridge-based gerontologist, says it
> could be very
> > relevant to the rates of several chemical and
> enzymatic processes
> > relevant to ageing 'It is a highly novel idea,' he
> says. 'But it
> > remains to be seen whether it can be the source of
> > therapies, but it is a prospect that certainly
> cannot be ruled out.'
> > Charles Cantor, a professor of biomechanical
> engineering at Boston
> > University, said: 'Preliminary data indicates that
> this approach can
> > potentially increase lifespan without adverse side
> effects. If this is
> > borne out by further experiments the implications
> are profound.'
> > Isotopes could also be used in pet food or as a
> means to protect
> > workers or soldiers from radiation.
> > Deuterium, a natural isotope of hydrogen (with 2
> protons rather than
> > one) could be used routinely.
> > Previous successes in extending lifespan have
> involved withdrawing
> > food to the point of near starvation, a process
> called caloric
> > restriction.
> > ###
> > Please acknowledge Chemistry & Industry as the
> source of these
> > items. If publishing online, please include a
> hyperlink to
> > http://www.chemind.org Please note Chemistry &
> Industry uses '&' in
> > its title, please do not correct to 'and'.
> > Chemistry & Industry magazine from SCI delivers
> news and comment
> > from the interface between science and business.
> As well as covering
> > industry and science, it focuses on developments
> that will be of
> > significant commercial interest in five- to
> ten-years time. Published
> > twice-monthly and free to SCI Members, it also
> carries authoritative
> > features and reviews. Opinion-formers worldwide
> respect Chemistry &
> > Industry for its independent insight.
> > SCI is a unique international forum where
> science meets business on
> > independent, impartial ground.
> > Anyone can join, and the Society offers a chance
> to share information
> > between sectors as diverse as food and
> agriculture, pharmaceuticals,
> > biotechnology, environmental science and safety.
> As well as publishing
> > new research and running events, SCI has a growing
> database of member
> > specialists who can give background information on
> a wide range of
> > scientific issues. Originally established in
> > SCI is a registered charity with members in over
> 70 countries.
> > ---------------------------------
> > Roy Herren
> > ---------------------------------
> > 8:00? 8:25? 8:40? Find a flick in no time with
> theYahoo! Search
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> "We must face the fact that the United States is neither omnipotent or
> omniscient - that we are only 6 percent of the world's population;
> that we cannot impose our will upon the other 94 percent of mankind;
> that we cannot right every wrong or reverse each adversity; and
> therefore there cannot be an American solution to every world
=== message truncated ===
"We must face the fact that the United States is neither omnipotent or
omniscient - that we are only 6 percent of the world's population; that
we cannot impose our will upon the other 94 percent of mankind; that we
cannot right every wrong or reverse each adversity; and therefore there
cannot be an American solution to every world problem."
-- John F. Kennedy
John Jacobus, MS
Certified Health Physicist
e-mail: crispy_bird at yahoo.com
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