Sunday, November 27, 2022

Living near streetlights “increases the risk of being a silent killer,” scientists warn

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LIVING near streetlights could increase the risk of a silent killer, experts warn.

Millions of people in the UK are living with diabetes and an estimated 850,000 people have undiagnosed type 2 diabetes, Diabetes UK experts warn.


Experts have warned that where you live and the amount of light you are exposed to could be harmful to your health[/caption]

Because of this and the fact that the symptoms are not always obvious, it is called the silent killer.

These symptoms include fatigue and peeing more than usual.

Now, experts in China have found that outdoor artificial light at night (LAN) is linked to impaired glucose control and an increased risk of diabetes.

People who have been diagnosed with diabetes need to monitor and control their blood sugar levels because their pancreas may not be making insulin (type 1) or not making enough insulin, or because your body is not using the insulin it produces properly (type 2).

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Failure to do this often results in either too high or too low glucose levels.

The experts wrote in Diabetologia that more than 9 million cases of the disease in Chinese adults have been attributed to LAN exposure.

The medics looked at data from the China Noncommunicable Disease Surveillance Study.

They then analyzed 98,658 adults, taking into account other risk factors such as their body mass index (BMI) and family history.

They marked the areas in different categories in terms of how much light exposure there was in each area.

The mean light intensity in the highest category was 69 times higher than in the lowest.

There was a 28 percent increase in diabetes cases in higher LAN areas compared to those in lower LAN areas, the experts said.

They said that on average, there is one extra case of diabetes for every 42 people living in higher LAN regions.

This, they said, might not have happened if they weren’t in a high LAN area.

Medical professionals said the scale of this problem is only going to get worse.

They added that an estimated 83 percent of the world’s population and more than 99 percent of people in the US and Europe live under light-polluted skies.

The authors concluded that “further studies directly measuring individual exposure to LAN are needed to confirm whether its association with diabetes is causal.”

dr Commenting on the study, Gareth Nye, Senior Lecturer at the University of Chester, said the study was not sufficient to distinguish between type 1 diabetes, which is based on a person’s genetics, and type 2 related to lifestyle.

He said that healthy sleep is hugely important in preventing the development of diabetes.

“Studies have shown that inconsistent sleep patterns have been linked to an increased risk of type 2 diabetes.

“However, this is the first to attempt to connect the outer layers of artificial light.

The signs of diabetes you need to know

The NHS says there are important signs of both type 1 and type 2 diabetes that you need to be aware of.

There are two different types of the disease, type 1 and type 2.

The first, the NHS says, is where the body’s immune system attacks and destroys the cells that produce insulin.

The second is much more common and occurs when the body is unable to produce enough insulin or the body’s cells are unresponsive to insulin.

Official guidelines state that you should see your GP as soon as possible if you notice any of the following main symptoms:

  • feeling very thirsty
  • peeing more often than usual, especially at night
  • feel very tired
  • weight loss and loss of muscle mass
  • Itching around the penis or vagina or frequent episodes of thrush
  • Cuts or wounds that are slow to heal
  • blurred vision.

The experts added that type 1 diabetes can develop over weeks or even days.

Those who have type 2 diabetes can have it for years without even realizing it, they added.

“One problem with this study is that the areas with the highest outdoor artificial light levels are likely to be those in urban areas and larger cities.

“It has long been known that living in an urbanized area increases the risk of obesity through increased access to high-fat and ready meals, less physical activity due to transport links, and fewer social activities,” he said.

A previous study authored by experts at Northwestern Medicine Feinberg School of Medicine in Chicago, USA found that sleeping in even a tiny amount of light is linked to diabetes.

Patients were tracked with a wrist-worn device, and the results showed those who were even exposed to low light had a 72 percent increased risk of high blood pressure, an 82 percent increased risk of obesity and a 100 percent increased risk had for diabetes.

They summarized that this could be because lower melatonin levels are associated with a risk of diabetes.

Melatonin can be reduced by exposure to light, they said, which affects the body’s metabolic function.

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Another 2015 study found that excessive exposure to artificial light is also linked to the development of diabetes.

Experts from the Netherlands Institute for Neuroscience said that artificial light increases the insulin response – suggesting that this type of light triggers glucose intolerance.

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