Sleep, calories and body fat and protein

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Hi All,

How may our lean to fat body mass ratio and CR affect sleep?

A not pdf-available paper examines such issues. As energy consumption

increased, so

did the amount of time sleeping. More time was spent in the dreaming section of

sleep than the not dreaming section of sleep with the increase in the lean to

fat

body composition ratio. I sleep about 6 hours each night and remember dreaming

relatively much. I CR and have a lean to fat body ratio of 11.6. My percent

body

fat is 8.2, versus 6.2 for the WUSTL CRON subjects and 22.4 for the WUSTL

control

subjects.

Is dream sleep time restricted in our CR?

As introduction from

Science. 1976 Nov 12;194(4266):732-4.

Sleep in mammals: ecological and constitutional correlates.

T, Cicchetti DV.

PMID: 982039

The interrelationships between sleep, ecological, and constitutional variables

were

assessed statistically for 39 mammalian species. Slow-wave sleep is negatively

associated with a factor related to body size, which suggests that large amounts

of

this sleep phase are disadvantageous in large species. Paradoxical sleep is

associated with a factor related to predatory danger, which suggests that large

amounts of this sleep phase are disadvantageous in prey species.

http://www.statsci.org/data/general/sleep.html is excerpted:

Variable Description

---------------------------------

NonDreaming slow wave ( " nondreaming " ) sleep

Dreaming paradoxical ( " dreaming " ) sleep

---------------------------------

http://www.statsci.org/data/general/sleep.txt

Tab-delimited?

Here, are the citation and abstract.

Guesdon B, Minet-Ringet J, Tome DG, Even PC.

Restriction-refeeding of calories and protein induces changes to slow wave and

paradoxical sleep that parallel changes in body lipid and protein levels in

rats.

Behav Brain Res. 2005 Nov 7;164(2):156-64.

PMID: 16076503

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve & db=pubmed & dopt=Abstra\

ct & list_uids=16076503 & query_hl=37

Abstract

.... sleep parameters [wakefulness (W), slow wave sleep (SWS), paradoxical sleep

(PS)] ... we induced states of energy or protein depletion/repletion which would

specifically affect lean or fat body mass ... electroencephalogram signals (EEG)

to

quantify the time spent in W, SWS and PS. Analysis of EEG changes in relation to

the

changes induced in body composition, showed that (1) the amount of sleep (PS and

SWS) followed the evolution of energy supply levels, and (2) the time spent in

PS

relative to SWS varied to a considerable degree (14–23.5%) and followed the same

trend as the ratio of lean body mass to fat mass. These results suggest the

possible

existence of quantitative and qualitative interactions between sleep quality and

the

anabolic and catabolic processes of peripheral fat and protein deposition.

Al Pater, PhD; email: old542000@...

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