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Flashing lights could ‘STOP Alzheimer’s disease in its tracks’

[The Sun] Researchers shone LED lights – flickering at a frequency of 40HZ – into the eyes of mice with toxic protein build-up in the brain. These dangerous plaques are thought to be the main cause of Alzheimer’s disease. An hour of exposure to the flashing lights also stimulated cells that break up damaging proteins. Scientists immediately noticed protein levels were plummeting in parts of the brain called the visual cortex and the hippocampus, according to a report in the journal Nature. However, they returned to normal within 24 hours, casting doubt on whether the effect is permanent. Scientists found the light boosted gamma waves in the brain. Generating the right strength of gamma waves is crucial for memory, perception and attention span.