Exposure to outdoor light at night could put people at a higher risk of developing Alzheimer’s disease, according to a new study published in Frontiers in Neuroscience.
Exposure to outdoor light at night could put people at a higher risk of developing Alzheimer’s disease , according to a new study published in Frontiers in Neuroscience. 'We show that in the U.S., there is a positive association between AD prevalence and exposure to light at night, particularly in those under the age of 65,' said first author Dr. Robin Voigt-Zuwala, an associate professor at Rush University Medical Center in Chicago, Illinois, in a press release.
Those under 65 years old, however, appeared to be more sensitive to nighttime lighting exposure, which increased their Alzheimer’s risk more than any other risk factor. 'Certain genotypes, which influence early-onset AD, impact the response to biological stressors, which could account for increased vulnerability to the effects of nighttime light exposure,' Voigt-Zuwala said in the release.
Insufficient sleep, in turn, is a proven risk factor for neurodegenerative diseases like Alzheimer’s. One recent study published in the American Journal of Preventive Medicine found that getting only five hours of sleep per night can raise the risk of dementia by 30% for people 50 and older. Among adults who have sleep-related movement disorders, the likelihood of dementia is nearly four times higher, the same study found.
The legislation against light pollution is usually very weak and/or not well implemented,' Fabio Falchi, Ph.D., a researcher at the Light Pollution Science and Technology Institute in Italy, told Fox News Digital. 'It is time to start putting limits on this pollutant, too, as with the rest of the other common pollutants.' CLICK HERE TO SIGN UP FOR OUR HEALTH NEWSLETTER The study did have some limitations, the researchers acknowledged. The data was gathered from a subset of the U.S.
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