Medindia

X

High-Fat Diet Leading to Weight Gain Raises Active-Period Sleep And Sleep Fragmentation

by Nancy Needhima on  July 11, 2012 at 11:49 PM Research News   - G J E 4
Leading society for research into all facets of eating and drinking behaviour, finds that prolonged exposure to a high-fat diet lessens the quality of sleep in rats according to research to be presented at the Annual Meeting of the Society for the Study of Ingestive Behavior (SSIB).
High-Fat Diet Leading to Weight Gain Raises Active-Period Sleep And Sleep Fragmentation
High-Fat Diet Leading to Weight Gain Raises Active-Period Sleep And Sleep Fragmentation
Advertisement

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".

Advertisement
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.

Source: Eurekalert
Advertisement

Post your Comments

Comments should be on the topic and should not be abusive. The editorial team reserves the right to review and moderate the comments posted on the site.
User Avatar
* Your comment can be maximum of 2500 characters
Notify me when reply is posted I agree to the terms and conditions

You May Also Like

Advertisement
View All