A new study reveals how a common genetic mutation linked to Alzheimer’s disease may accelerate brain cell damage by disrupting the normal recycling of toxic proteins. Researchers found that the mutation interferes with the body’s ability to clear amyloid-beta, a sticky protein that forms harmful plaques in the brain, suggesting a deeper connection between protein buildup and neurodegenerative decline. The findings could offer fresh insights into why some individuals develop Alzheimer’s earlier or more aggressively, potentially paving the way for targeted treatments. Experts emphasize that while the discovery is promising, more work is needed to translate these mechanisms into clinical applications.