Your nose could detect Alzheimer’s years before symptoms begin

[All Top News -- ScienceDaily]

Losing your sense of smell might signal Alzheimer’s far earlier than expected. Scientists found that immune cells in the brain actively destroy smell-related nerve fibers after detecting abnormal signals on their surfaces. This damage begins in early stages of the disease, well before cognitive decline. The discovery could help identify at-risk patients sooner and improve treatment timing.

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