Higher nighttime light intensity is correlated with increased Alzheimer's disease prevalence, suggesting light pollution may influence neurodegenerative risks.
By Vijay Kumar MalesuReviewed by Lily Ramsey, LLMSep 10 2024 Startling new study reveals nighttime light pollution may spike Alzheimer’s risk, with younger adults most affected.
It is linked to sleep disruption, obesity, depression, and potentially neurodegenerative diseases like Alzheimer’s. Further research is needed to understand how nighttime light exposure may contribute to Alzheimer's and its impact on neurodegeneration. Nighttime light exposure data were acquired from National Aeronautics and Space Administration ’s Visible Infrared Imaging Radiometer Suite / National Polar-orbiting Partnership Bidirectional Reflectance Distribution Function
Study results The relationship between average nighttime light intensity and AD prevalence was examined using Medicare data from 2012 to 2018, alongside satellite data on nighttime light exposure. States were ranked by their average nighttime light intensity and divided into five groups, from the darkest to the brightest.
However, other co-variates, like atrial fibrillation, diabetes, and stroke, were more strongly associated with AD prevalence than light exposure.
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