Watch sleep patterns

Poor sleep quality has been linked with higher levels of blood glucose, insulin and insulin resistance in patients with type 2 diabetes, according to a study in Diabetes Care. 

Researchers used wrist actigraphy (movement detection) and questionnaires to collect data on sleep duration and fragmentation in 40 patients with diabetes, as well as 531 people without the disease. 

Participants wore the wrist monitors for two separate three-day periods one year apart. In the participants with diabetes, those with 10% higher sleep fragmentation were more likely to have higher fasting glucose and insulin levels. The association was even stronger in participants with insomnia.

Diabetes Care 2011;34:1171-76