During the past decade researchers have discovered that lack of adequate sleep can cause metabolic defects similar to those of diabetes. Blood sugar tends to be higher and insulin resistance more pronounced in people who don’t get adequate sleep. To create these abnormalities in blood sugar metabolism for studies, researchers typically deprived subjects of sleep to an extreme degree for several days. Recent research however, showed that less drastic sleep deprivation can create the same diabetes-like problems in metabolism.
In a study just published in the June edition of the Journal of Clinical Endocrinology and Metabolism (95:2963-2968, 2010), researchers in the Netherlands allowed normal subjects to sleep for only 4 hours for a single night. They found that after one night of sleep deprivation the body was not able to respond nearly as well to insulin as after a normal night of sleep.
Can this type of sleep deprivation eventually lead to permanent blood sugar problems? A group of researchers from Columbia University found that people who habitually sleep less than 5 hours per night are twice as likely to develop diabetic levels of blood sugar compared to those who sleep more.
What is the connection between sleep deprivation and diabetes? The thought is that lack of sleep fosters an inflammatory environment in the body. Whether this is because during sleep the body removes inflammatory cells and toxins or whether sleeplessness increases the production of inflammatory agents is not known. Inflammation, in turn, creates the basic metabolic defect in type 2 diabetes known as insulin resistance. Since insulin is the hormone that regulates blood sugar, if the body is resistant to insulin than high blood sugar (diabetes) can develop.
Conclusion? Work and worry less, sleep better and longer, and reduce your risk of getting diabetes. (Did I hear you say he must be dreaming?)
This article is for educational purposes only and is not meant as medical advice or treatment.
Gary Pepper, M.D.
Editor-in-Chief, Metabolism.com
