Friday, January 18, 2008

Lacking in deep sleep may enhance Diabetes risk

Hyderabad, January 18: Deep, sound sleep may be important for keeping Type 2 diabetes at bay, a research in the US said.

The team studied nine adults between the ages of 20 and 31, who spent consecutive nights in the sleep lab where they slept undisturbed for 8.5 hours each.

Then, for three nights, the researchers disrupted their sleep with noise.

The effect was to reduce slow-wave deep sleep by about 90 per cent without altering total sleep time.

At the end of each study, the researchers injected a sugar or glucose supplement into each subject and measured their blood sugar and response to insulin, the hormone that regulates the glucose.

After three nights of disturbed sleep, eight of the nine volunteers had become less sensitive to insulin, without increasing the production of insulin. Since insulin tells the body it has consumed energy, this deficiency can lead to weight gain and diabetes.