Afternoon siestas put you at diabetes risk!

Siesta lovers, excessive daytime sleepiness and long naps have been linked to increased risk of type 2 diabetes in a new study. In the study, the authors did a meta-analysis to investigate the association between daytime sleepiness or napping and the risk of type 2 diabetes. They searched Medline, the Cochrane Library, and Web of Science for articles published up to November 2014 using the keywords daytime sleepiness, nap, and diabetes. However, afternoon naps are not only bad, they help in lowering your blood pressure!

Excessive daytime sleepiness was found to increase the risk of diabetes by 56 percent, while a longer daytime nap of 60 minutes or more increased the risk by 46 percent. In contrast, a shorter nap (60 mins or less per day) did not increase the risk of diabetes. The analysis showed there was no effect of napping up to about 40 minutes per day, after which risk began to increase sharply. (Read: Why a quick afternoon nap is good for you)

The authors concluded that daytime napping might be a consequence of night-time sleep disturbance such as obstructive sleep aponea (OSA). Epidemiological studies have shown that obstructive sleep apnoea is independently linked to blockages (ischaemia) of heart arteries, stroke, fatal and non-fatal cardiovascular events, and all-cause mortality.

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They further explained entering deep slow-wave sleep and then failing to complete the normal sleep cycle can result in a phenomenon known as sleep inertia, in which a person feels groggy, disoriented, and even sleepier than before napping. Although the mechanisms by which a short nap might decrease the risk of diabetes are still unclear, such duration-dependent differences in the effects of sleep might partly explain the findings. The study was presented at the annual meeting of the European Association for the Study of Diabetes (EASD).

Source: ANI

Image source: Getty Images

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