Cell phone exposure may be helpful in the fight against Alzheimer’s disease, a new study shows.

The study, involving mice, provides evidence that long-term exposure to electromagnetic waves associated with cell phone use may protect against, and even reverse, Alzheimer’s disease.

The study is published in the Journal of Alzheimer’s Disease.

“It surprised us to find that cell phone exposure, begun in early adulthood, protects the memory of mice otherwise destined to develop Alzheimer’s symptoms,” study researcher Gary Arendash, PhD, of the University of South Florida, says in a news release. “It was even more astonishing that the electromagnetic waves generated by cell phones actually reversed memory impairment in old Alzheimer’s mice.”

The researchers say they found that exposing old mice with Alzheimer’s disease to electromagnetic waves generated by cell phones reduced brain deposits of beta-amyloid. Brain plaques formed by the abnormal accumulation of beta-amyloid are hallmarks of Alzheimer’s disease, which is why most treatments try to target the protein.

The study involved 96 mice, including mice genetically engineered to develop Alzheimer’s disease and normal mice. Both the Alzheimer’s mice and the normal rodents were exposed to the electromagnetic field generated by standard cell use for two one-hour periods daily for seven to nine months.

The researchers say that if cell phone exposure was begun when the Alzheimer’s mice were young adults, and before signs of memory loss became apparent, their cognitive ability was protected. And if older mice with Alzheimer’s were exposed, their memory impairment improved. What’s more, months of cell phone exposure even boosted the memories of normal mice, the researchers write.

The researchers say the memory benefits in normal mice of cell phone exposure took months to show up, suggesting a similar effect in humans might take years. However, they also caution that “care should be taken in extrapolating our results to cell phone use and [electromagnetic wave] exposure in humans.”

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