La privation de sommeil et ses conséquences métaboliques
Posté: 11/06/2012 06h36Le fait de ne pas assez dormir rend également plus affamé car le manque de sommeil fait monter les niveaux sanguins de ghréline, une hormone qui déclenche la faim et réduit la consommation d'énergie par le corps.
=>> ça fout le why dans les hormones
Compared with sleep, total sleep deprivation was associated with an increased activation in the right anterior cingulate cortex in response to food images, independent of calorie content and prescan hunger ratings. Relative to the postsleep condition, in the total sleep deprivation condition, the activation in the anterior cingulate cortex evoked by foods correlated positively with postscan subjective appetite ratings. Self-reported hunger after the nocturnal vigil was enhanced, but importantly, no change in fasting plasma glucose concentration was found.
== >> psychologiquement, on réagit plus à l'envie de bouffer
=>> ça fout le why dans les hormones
Compared with sleep, total sleep deprivation was associated with an increased activation in the right anterior cingulate cortex in response to food images, independent of calorie content and prescan hunger ratings. Relative to the postsleep condition, in the total sleep deprivation condition, the activation in the anterior cingulate cortex evoked by foods correlated positively with postscan subjective appetite ratings. Self-reported hunger after the nocturnal vigil was enhanced, but importantly, no change in fasting plasma glucose concentration was found.
== >> psychologiquement, on réagit plus à l'envie de bouffer
