"Tim Tyler"  wrote in message
news:c5qbs0$1bsq$1{at}darwin.ediacara.org...
> TomHendricks474  wrote or quoted:
>
> > 2. I note that slow metabolism = long life in
> > the longest living creatures and plants, lichen,
> > the Welsitsdchia mirabilis, millenium plant,
> > tortoises, bristlecone pines,
> > etc. Is there a term or model for that idea?
>
> "rate of living theory"?
>
> E.g. see:
>
> ``Living fast, dying when? The link between aging and energetics''
>
> ``[...] Machines that are run fast wear out more quickly, so the notion
was
>   born that humans and animals might experience similar fates: the faster
>   they live (expressed as greater energy expenditure), the sooner they
>   die.  Evidence supporting the "rate-of-living" theory was
gleaned from
>   the scaling of resting metabolism and life span as functions of body
>   mass. The product of these factors yields a mass-invariant term,
>   equivalent to the "amount of living." There are at least
four problems
>   with this evidence [...]''
>
>  - http://calorierestriction.org/pmid/?n=12042467
> -- 
> __________
>  |im |yler  http://timtyler.org/  tim{at}tt1lock.org  Remove lock to reply.

This inverse phenomenon also holds generally for heartbeats, that is, the
faster an animal's heartbeat the shorter its lifespan.  Which gives rise to
the heartbeat-invariant system holding that every organism is born with a
set number of heartbeats.  Take home message: don't exercise, you're using
them up faster.
---
þ RIMEGate(tm)/RGXPost V1.14 at BBSWORLD * Info{at}bbsworld.com

---
 * RIMEGate(tm)V10.2áÿ* RelayNet(tm) NNTP Gateway * MoonDog BBS
 * RgateImp.MoonDog.BBS at 4/20/04 1:33:00 PM