Having a midday break and a short nap is all what most people need, to stay fresh the whole day. However, indulging in this activity for longer periods could have a devastating on your health.
A recent study claimed that napping for more than an hour could increase the risk of Type 2 diabetes by whooping 45 percent. The study was conducted by researchers at the University of Tokyo, which used data from 21 studies involving more than 300,000 people who had recorded their daily level of midday sleep.
The research found there was a link between long daytime naps of more than 60 minutes and a 45pc increased risk of type-2 diabetes, reported Daily Mail, as compared with no daytime napping. However, there was no link with naps of less than 40 minutes.
“Several studies have demonstrated beneficial effects of taking short naps less than 30 minutes in duration, which help to increase alertness and motor skills,” said lead author Dr Yamada Tomahide.
“A short nap finishes before the onset of deep slow-wave sleep… 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” Yamada added.
Prof Naveed Sattar, Professor of Metabolic Medicine at the University of Glasgow, said now we have a lot of evidence of some kind of link between sleep disturbances and diabetes.
“This observational study shows an association between longer naps and diabetes. It’s likely that risk factors which lead to diabetes also cause napping. This could include slightly high sugar levels meaning napping may be an early warning sign of diabetes: he said.
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