The first thing that sent me on this little investigation was sleep's effects on dietary carb metabolism and body fat. Sleep debt does indeed have harmful effects on glucose tolerance and endocrine function.
This is partially due to evening cortisol elevation (perhaps another reason to keep carbs in check at dinnertime). How do you think this might affect someone with other negative affecters of carb metabolism like family history of diabetes, lots of emotional stress, central body fat, or chronically sore muscles from eccentric training (negatives)?
Although undesirably elevated insulin responses to dietary carbs can be partially reversed with physical activity, it can't fix the problem, even if one can muster the energy to get his butt moving. So, it seems to me that unlike genetic tendencies, sleep is a variable that's under our control and thus needs consideration.
סימוכין:
16. Sheen, A. Clinical study of the month. Does chronic sleep deprivation predispose to metabolic syndrome? Rev Med Liege. 1999; 54(11): 898-900.
17. Spiegel, K., et al. Impact of sleep debt on metabolic and endocrine function. Lancet. 1999; 354(9188): 1435-9.
21. VanHelder, T and Radomski, M. Sleep deprivation and the effect on exercise performance. Sports Med. 1989; 7(4): 235-247.
22. VanHelder, T., et al. Effects of sleep deprivation and exercise on glucose tolerance. Aviat Space Environ Med. 1993; 64(6): 487-492.
24. Vorona, R., et al. Overweight and obese patients in a primary care population report less sleep than patients with a normal body mass index. Arch Intern Med. 2005; 165(1): 25-30.
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