Why does calorie restriction reduce the rate of aging?
dman at netcom.com
Fri Aug 21 17:54:52 EST 1992
rbradbur at hardy.u.washington.edu (Robert Bradbury) writes:
: When food is scarce, reproduction
: is not a particularly good idea. Instead an organism would have a
: selective advantage if it could put the resources which would normally
: go into reproduction into preserving the organism until such time as
: times got better and food resources would allow better offspring survival.
So, are you saying that we'll live longer but without any sex drive?
Longer, but less pleasure?
: 2) Protein synthesis is expensive from an energy requirement standpoint.
: How can an organism get less overall energy and yet increase its
: protein breakdown and synthesis? One saves some energy because
: you do not have the losses associated with building up/breaking
: down fatty acids. There also seems to be a less cell replication
: due to lower growth hormone/T3 levels. Do these and the slightly
: lower temperatures provide enough energy savings to be able to
: increase protein synthesis with 40% less calories or is there
: something I am missing?
Not sure on that one; but it is clear that less cell replication equates
to less oncogenetic mutation.
Good report. Thanks.
__D_a l_l m a_n _ R o_s s _ |dman at netcom.com /or/ |"You sound like a man|
l \\ l\\ /l /\\ l\\ l |dross at well.sf.ca.us |with a rubber nose." |
l >)l \\ /ll / \\ l \\ l |vox/fax: 1.510.645.1883| -- One-Lung Bill |
l // l \X ll/--- \\l \\ l |350 Perkins St., #108 | Remmer (deceased)
More information about the Ageing