Bright outdoor lights are commonly used to improve visibility at night, increasing safety and comfort. However, according to the study, About 80 percent of the world's population lives in light-polluted environmentsWhich may have a negative impact on health.
The study, published in the journal Stroke and cited by PAP, was conducted on 28,000 people. 302 adult Chinese population. Scientists assessed residents' exposure to night-time light from outdoor buildings using satellite images. This data was compared with stroke cases confirmed by hospital records and citizens' death certificates.
The results showed that People most exposed to night light have a 43% increased risk of cerebrovascular disease Compared to people with the lowest level of exposure.
A similar risk was found among people most exposed to air pollution. People most exposed to PM2.5 particles, which mainly result from the combustion of gasoline, diesel oil or wood, had a 41% greater risk of cerebrovascular accidents than people exposed to these pollutants to a lesser extent.
Dr. Jianping Wang, one of the study's authors, emphasizes that taking environmental factors into consideration is crucial in efforts to reduce the global burden of cardiovascular disease.
The study authors explain that constant exposure to bright light at night may inhibit the production of melatonin, a hormone that promotes sleep, leading to sleep disorders. Studies have shown that people with sleep problems have an increased risk of worsening cardiovascular function over time.
“More effective regulations and prevention strategies should be developed to reduce the burden of disease caused by environmental factors such as light pollution and air pollution, especially for people living in the most densely populated and polluted areas of the world,” Dr. Wang recommends.
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