Women Who Sleep Too Much May Have Higher Diabetes Risk
Women who tack on a longer amount of sleep every night may be putting themselves at risk for type 2 diabetes, according to new research.
The study, conducted by a team from Kaiser Permanente, found that women who slept for two hours more than normal were 15 percent more likely to develop diabetes.
The findings suggest that "catching up" on sleep after days, weeks, or even years of shorter sleep cycles may not actually be a good thing, said study author Elizabeth Cespedes.
Too little or too much sleep - which is worse?
Previous research on sleep and diabetes suggests that too little sleep is linked to metabolic problems, like insulin resistance. But the authors of the current study wanted to explore how changes in sleep patterns over time affect diabetes risk.
The study included 60,000 American women who were tracked for several decades. Researchers looked for changes in sleep patterns over a 14-year period and then connections between these changes and cases of type 2 diabetes.
Even after adjusting for other factors, the researchers found that adding two or more hours of sleep was linked to cases of type 2 diabetes.
Cespedes said the study doesn't prove a cause and effect relationship, but it does suggest that changes in sleep patterns - too little or too much sleep - are useful areas of further study in both children and adults.
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