Sleep and metabolism/endocrine

[IronFreakX]

Impact of sleep debt on metabolic and endocrine function.

Spiegel K, Leproult R, Van Cauter E.

Department of Medicine, University of Chicago, IL 60637, USA.

BACKGROUND: Chronic sleep debt is becoming increasingly common and affects millions of people in more-developed countries. Sleep debt is currently believed to have no adverse effect on health. We investigated the effect of sleep debt on metabolic and endocrine functions. METHODS: We assessed carbohydrate metabolism, thyrotropic function, activity of the hypothalamo-pituitary-adrenal axis, and sympathovagal balance in 11 young men after time in bed had been restricted to 4 h per night for 6 nights. We compared the sleep-debt condition with measurements taken at the end of a sleep-recovery period when participants were allowed 12 h in bed per night for 6 nights. FINDINGS: Glucose tolerance was lower in the sleep-debt condition than in the fully rested condition (p<0.02), as were thyrotropin concentrations (p<0.01). Evening cortisol concentrations were raised (p=0.0001) and activity of the sympathetic nervous system was increased in the sleep-debt condition (p<0.02). INTERPRETATION: Sleep debt has a harmful impact on carbohydrate metabolism and endocrine function. The effects are similar to those seen in normal ageing and, therefore, sleep debt may increase the severity of age-related chronic disorders.

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[SwoleCat]

That sucks because I only slept 4 hours last night and ate more carbs than you could imagine, .

Before bed and at breakfast.

Nap time!!

~SC~

[G-Force]

lucky i slept all day today

[collar]

too much sleep is no good............
about 8 hours is perfect...