Poor sleep ups glucose levels
However, sleeping for longer than eight hours – whether or not the sleep quality is good or bad – is also associated with an increased risk of impaired fasting glucose.
Chinese researchers surveyed 15,000 people and said the associations were independent of factors such as age, obesity and family history of diabetes. They said short sleep duration increased appetite, and in those with sleep debt, glucose tolerance and insulin sensitivity were decreased.
“These data suggest that sleep loss is likely to have a profound impact on IFG.”