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[News] High-fat Diet Increases Sleep Fragmentation
#1
High-fat Diet Increases Sleep Fragmentation

Research presented at the Annual Meeting of the Society for the Study of Ingestive Behavior (SSIB) finds that prolonged exposure to a high-fat diet reduces the quality of sleep in rats.

Using radio-telemetry, the authors measured 24-hour sleep and wake states after rats consumed a high fat diet for 8 weeks. Compared to rats that consumed a standard laboratory chow, the rats on the high-fat diet slept more but sleep was fragmented. The increased sleep time of the rats on the high-fat diet occurred mainly during the normally active phase of the day, resembling excessive daytime sleepiness observed in obese humans.

According to lead author Catherine Kotz, "Studies in humans indicate a relationship between sleep quality and obesity. Our previous work in animals shows a link between good quality sleep, resistance to weight gain, and increased sensitivity to orexin, a brain chemical important in stabilizing sleep and wake states. The current studies show that after high-fat diet-induced weight gain in rats, sleep quality is poor and orexin sensitivity is decreased. These findings suggest that poor sleep associated with weight gain due to a high-fat diet may be a consequence of reduced orexin sensitivity."

These studies highlight the impact of weight gain on sleep quality and a potential brain mechanism underlying these diet and weight-gain induced changes in sleep behavior.

fair use from:
http://www.sleepreviewmag.com/sleep_repo...-18_03.asp
The above post may contain copyrighted material the use of which has not always been specifically authorized by the copyright owner. The material available is intended to advance the understanding of Sleep Apnea treatment and to advance the educational level of Sleep Apnea patients with regard to their health. Sometimes included is the full text of articles and documents rather than a simple link because outside links frequently "go bad" or change over time. This constitutes a "fair use" of any such copyrighted material as provided for in section 107 of the US Copyright Law. In accordance with Title 17 U.S.C. Section 107, the material in this post is distributed without fee or payment of any kind for research and educational purposes. If you wish to use copyrighted material from this post for purposes of your own that go beyond "fair use", you must obtain permission from the copyright owner.
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#2
Why does one need rats to do such a study? It would be so easy to do the same study with humans without much risk. I do understand the need for rat studies when it comes to studying toxic limits for substances. There it is reasonable to make inferences to humans rather than subjecting humans to these substances.
But in this case, I would wait until somebody does a human study before I would eliminate fat from my diet in an effort to improve my fragmented sleep.

Furthermore, it isn't clear from this abstract, whether it was obesity caused by the high fat diet that is causing the fragmented sleep, rather than just obesity, that could have been caused by a just a high calorie diet (high carbs but low in fats.)
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#3
Its not fat..........its sugar
http://www.apneaboard.com/forums/Thread-...tter-Truth
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