A study published in the journal Acta Diabetologica reports that people with diabetes and prediabetes who have lower sleep efficiency—a measure of how much time in bed is actually spent sleeping—have poorer cognitive function than those with better sleep efficiency.
“The cognitive effects of poor sleep quality are worse for this population, which we know is already at risk for developing cognitive impairment as a result of having diabetes,” says Sirimon Reutrakul, MD, associate professor of endocrinology, diabetes, and metabolism in the University of Illinois at Chicago College of Medicine and corresponding author on the paper, in a release.
In previous studies, diabetes has been linked to cognitive impairment and an increased risk for dementia. Other studies have found that sleep disturbances, which are common in people with diabetes, are also linked to cognitive impairment.
Researchers led by Reutrakul investigated the relationship between sleep and cognitive function in patients with abnormal glucose tolerance—patients with impaired glucose tolerance indicative of prediabetes, as well as patients with clinically diagnosed diabetes.
A total of 162 participants were involved in the study: 81 with