Weight loss improves quality of sleep among overweight people

by laurri on November 7, 2012

fat lossA recent study performed by John Hopkins University showed that weight loss improved sleep.

The following study included 77 individuals who were overweight and had Type 2 diabetes or pre-diabetes. Sleep surveys were completed both at the beginning and end of this study. The surveys asked for detailed problems with sleeping(ie. sleep apnea,restless sleep, fatigue, insomnia, etc). A BMI (body mass index) was also measured and tracked to observe any changes.

Two groups were created for this study. The first group was asked to follow a diet and an exercise program that was supervised. The second group was told to only incorporate a specific diet program.

how can I lose weightWhen the study was finished, some amazing results occurred. Both groups lost an average of 15 lbs as well as a reduction of 15% in body fat.  Because these individuals had a diverse amount of sleep issues, the researchers thought it would best to incorporate a composite score. This would help them to observe an overall sleeping score.

The results showed that regardless of whether or not a group was exercising, sleep issues were decreased for both. Both group’s overall sleeping score improved approximately 20%.

According to the professor of medicine at the Johns Hopkins University School of Medicine and director of clinical and research exercise physiology, Kerry Stewart reported on the correlation between sleep quality and weight loss.

Kerry stated,”We found that improvement in sleep quality was significantly associated with overall weight loss, especially belly fat.”

Kerry continues by saying, “The key ingredient for improved sleep quality from our study was a reduction in overall body fat, and, in particular belly fat, which was true no matter the age or gender of the participants or whether the weight loss came from diet alone or diet plus exercise.”

obesityIn an interview with Time, Kerry explained that belly fat in particularly was concerning because of how metabolically detrimental it can be to one’s health.

Kerry states, “Belly fat is almost like a living organ. It produces proteins that cause inflammation.”  “When you lose a lot of belly fat in particular, the level of those substances go way down, and the inflammatory response is much less than it was before.”

Not only does sleep improvement occur with belly fat loss but a whole array of health issues that are related to inflammation  improve.  In addition,  the risks for heart attacks, strokes, and irregular heartbeats are decreased when sleep disruptions are decreased.



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