Sweet dreams

Poor sleep quality can have a significant impact on diabetes control, according to a study of 40 people with diabetes and 115 controls. 

Among patients with diabetes, 10% higher sleep fragmentation was associated with a 9% higher fasting glucose level and a 30% higher fasting insulin level. Those figures increased dramatically in patients with insomnia, which was associated with a 23% higher fasting glucose level and a 48% higher fasting insulin level. Sleep duration did not have an effect on the measures. 

In patients without diabetes, sleep quality and duration did not impact on those measures after adjusting for variables, although unadjusted models did link snoring to increases in fasting glucose and insulin.

Diabetes Care 2011; 34:1171-76