Study Links Nighttime Light Exposure to Increase Alzheimer's Risk in Adults Under 65
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In some places around the globe, the lights never go off. Streetlights, roadway lighting, and illuminated signs can deter crime, make roads safer, and enhance landscaping. Undisrupted light, however, comes with ecological, behavioural, and health consequences.
Now, researchers there have investigated correlations between outside nightly light pollution and Alzheimer's disease (AD).
“We show that in the US there is a positive association between Alzheimer's disease prevalence and exposure to light at night, particularly in those under the age of 65,” said the first author of the Frontiers in Neuroscience study, Dr Robin Voigt-Zuwala, an associate professor at Rush University Medical Center. “Nightly light pollution – a modifiable environmental factor – may be an important risk factor for Alzheimer's disease.”
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