Expert issues concerning advice to anyone who sleeps with their curtains open

By Staff 6 Min Read

Some people can’t sleep with any light source coming into the bedroom – however for those who do enjoy being woken up by natural light, it could be causing serious health issues

If you enjoy being woken up by natural sunlight – this is your sign to invest in some blackout blinds.

Although it can be nice to wake up to the sunshine coming through your windows, experts have urged people to rethink their sleeping habits as it could be affecting your health.

Chinese researchers have claimed that leaving curtains open while you sleep at night could “increase your risk of a stroke by 43%” as light pollution has been found to hinder good quality sleep – which can then put a strain on your organs.

It’s not a good idea to disrupt the natural sleep-wake rhythm according to the experts, as they studied data collected from over 28,000 to see the impacts it can have, and found a clear link.

Dr Jain-Bing Wang, a public health expert involved in the study said: “Our study suggests that higher levels of exposure to outdoor artificial light at night may be a risk factor for cerebrovascular disease. Therefore, we advise people, especially those living in urban areas, to consider reducing that exposure to protect themselves from its potentially harmful impact.” as reported by The Metro.

The scientists analysed people from the same town, who all had a history of cerebrovascular disease (such as strokes and aneurysms) for six years, and out of the 28,300 people, 9000 had a stroke in this period – and 378 suffered other cerebrovascular disease.

The experts also analysed the light pollution each person was exposed to at night to see if there was a link, as they stated that exposure to bright lights at night could “lead to the body’s circadian rhythm suppressing melatonin secretion”. This could then result in an increase in triglyceride levels, blood pressure and blood glucose levels, triggering vascular conditions.

“Despite significant advances in reducing traditional cardiovascular risk factors such as smoking, obesity and type 2 diabetes, it is important to consider environmental factors in our efforts to decrease the global burden of cardiovascular disease,” Dr Wang explained.

According to the NHS, symptoms of a stroke can be remembered with the word ‘FAST’. These symptoms include:

  • Face – the face may have dropped on 1 side, the person may not be able to smile, or their mouth or eye may have dropped.
  • Arms – the person with a suspected stroke may not be able to lift both arms and keep them there because of weakness or numbness in 1 arm.
  • Speech – their speech may be slurred or garbled, or the person may not be able to talk at all despite appearing to be awake; they may also have problems understanding what you’re saying to them.
  • Time – it’s time to dial 999 immediately if you see any of these signs or symptoms.

You can find more information about strokes and symptoms here.

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