Hi JenniferV!
I have suspected for a long time that I have sleep apnea. I wake up multiple times during the night and can't remember the last time I had a decent sleep.

I have not read that it is linked to insulin resistance but it makes sense since most with it are overweight, including myself. I have read that stress and lack of sleep are related to increased cortisol levels...I found this on
www.CalorieKing.com Losing sleep, gaining weight
Do you lose sleep over your weight? It might be time to try losing weight over your sleep!
According to a major study published in the
Journal of the American Medical Association, lack of sleep can diminish the production of the hormone GH - a hormone that helps inhibit weight gain. GH plays an important role in controlling the proportions of fat and muscle. Having less of this hormone increases your chances of being overweight.
The hormone leptin, which regulates the metabolism of carbohydrates and signals the body when it should feel full, can also be affected by lack of sleep. When there are low levels of leptin, the body craves carbohydrates regardless of the amount of calories consumed. This can lead easily to weight gain.
On the other hand, studies show that if you get high amounts REM sleep (deep or slow-wave) your evening cortisol levels are more likely to be well-balanced. The hormone cortisol also plays a role in regulating appetite. The more balanced your cortisol levels, the easier it is to control your appetite.
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Here's to getting a good nights sleep!
Crystal