Tout savoir sur le sommeil
41.5K views | +0 today
Follow
Tout savoir sur le sommeil
Découvrir le sommeil, ses mécanismes, ses ratées, les solutions pour mieux dormir
Your new post is loading...
Your new post is loading...
Scooped by sylvie Royant-Parola
Scoop.it!

Machine à PPC : le regard d'un nouvel utilisateur

Machine à PPC : le regard d'un nouvel utilisateur | Tout savoir sur le sommeil | Scoop.it
Avant le début de son traitement, il savait qu'il faisait des apnées du sommeil, il avait déjà une certaine connaissance de la pathologie car plusieurs de ses proches y étaient sujets et suivaient ou ont suivi à un moment un traitement ...
Françoise Soros's comment May 10, 2011 2:29 AM
Merci Sylvie pour la réponse. Vais me renseigner maintenant sur quelle hormone diurétique, il s'agit !
sylvie Royant-Parola's comment, May 10, 2011 5:32 AM
Facteur natriurétique auriculaire (ANF), tout simplement!
Françoise Soros's comment May 10, 2011 5:49 AM
C'est tout simple ;-)
Scooped by sylvie Royant-Parola
Scoop.it!

Quand le cerveau fait pause... - Actualité médicale

Quand le cerveau fait pause... - Actualité médicale | Tout savoir sur le sommeil | Scoop.it
Manque d'attention, absences et difficultés à se concentrer sont souvent ressentis après une courte nuit. Rien de plus banal, mais que se passe-t-il réellement dans notre cerveau ? Alors que nous sommes parfaitement éveillés, certains de nos neurones feraient de courtes siestes, selon des chercheurs italo-américains qui publient leurs travaux dans la revue Nature.
No comment yet.
Scooped by sylvie Royant-Parola
Scoop.it!

Is Insomnia Associated with Mortality?

Is Insomnia Associated with Mortality? | Tout savoir sur le sommeil | Scoop.it
The Penn State Cohort mortality data, accepted in April and appearing in September, 2010 reported that insomnia was associated with mortality in men with short sleep duration, but not in men with “normal” sleep duration or in women. Short sleep duration itself was not significantly associated with mortality in the Penn State Cohort. Our similar paper, accepted and published in the same months and also utilizing up to 14 years of follow-up, demonstrated mortality associated with objective long sleep duration as well as short, and found mortality associated with long and short time in bed and with poor sleep efficiency. In our data, insomnia as measured by the validated WHI insomnia rating scale was not a significant mortality predictor, when long and short sleep were controlled (unpublished). What could explain the discrepancies between the two reports?
No comment yet.
Scooped by sylvie Royant-Parola
Scoop.it!

Actualité > Les nourrissons qui dorment plus... grandissent mieux !

Actualité > Les nourrissons qui dorment plus... grandissent mieux ! | Tout savoir sur le sommeil | Scoop.it
Le sommeil est déjà connu pour être bénéfique mais, cette fois, une nouvelle étude montre qu’il permet aux nourrissons de grandir plus rapidement !
No comment yet.
Scooped by sylvie Royant-Parola
Scoop.it!

Blog › Des poissons insomniaques pourraient livrer les secrets du sommeil

Blog › Des poissons insomniaques pourraient livrer les secrets du sommeil | Tout savoir sur le sommeil | Scoop.it
Des poissons insomniaques pourraient livrer les secrets du sommeil http://t.co/nWLSMf5...
No comment yet.
Scooped by sylvie Royant-Parola
Scoop.it!

REM sleep: A biological and psychological paradox

REM sleep: A biological and psychological paradox | Tout savoir sur le sommeil | Scoop.it
Sleep and rest can be satisfactorily explained as adaptive states and whose core function is energy conservation and behavioral regulation. In addition to these functions, certain recuperative processes may be accomplished within sleep. However, the adaptive role of rapid eye movement (REM) sleep remains a complete mystery. The high levels of brain metabolic demand and attenuation of homeostatic regulation make it difficult to understand how animals benefit from this state. Adding to the mystery, it is well known that drug induced suppression of REM sleep is without any striking effect on behavior. Humans taking selective serotonin reuptake inhibitors, serotonin–norepinephrine reuptake inhibitors, monoamine oxidase inhibitors and antidepressants have a massive suppression of REM sleep yet they do not go insane and do not have any apparent impairment of memory – indeed may have some small improvements of memory. Even long term usage of these drugs, with concomitant reduction or elimination of REM sleep does not generally have deleterious effects on health. Indeed they are often given to regulate blood pressure or improve mood. Similarly, no cognitive or health impairment has been identified in the few humans who have lost REM sleep because of brain injury. So, REM sleep truly has earned the name “paradoxical sleep,” first given to it by the French researcher Michel Jouvet because of its waking electroencephalogram (EEG) during behavioral sleep. It should be noted that in contrast to the findings in humans, deprivation of rats of REM or non REM sleep by the disk over water method can be lethal. However, this may well be due to stress involved in repeated arousals rather than sleep loss itself. Lethal effects of sleep loss have not been reported in mice, cats or other animal sleep subjects.

So we are left with a profound question; why do all land mammals (but not necessarily marine mammals and and many, perhaps all birds have REM sleep if it uses so much energy and can apparently be dispensed with without obvious negative consequences? Several recent papers in this journal address aspects of this paradox.
No comment yet.
Scooped by sylvie Royant-Parola
Scoop.it!

Les écrans d'ordinateur agissent sur le sommeil

Les écrans d'ordinateur agissent sur le sommeil | Tout savoir sur le sommeil | Scoop.it
La lumière naturelle est fondamentale dans la régularisation de nos rythmes biologiques et donc de notre sommeil. Mais la lumière artificielle peut renforcer, ou au contraire, détraquer cette organisation ...
No comment yet.