TV professor and mathematician Hannah Fry has highlighted a fascinating emerging theory suggesting that Alzheimer's disease could begin in the nose long before any traditional signs of memory loss appear. Discussing recent research, she explained that the olfactory system provides a direct pathway from the outside world into the brain through tiny holes in the skull behind the nose. Studies involving mice exposed to bacteria, stray dogs in heavily polluted cities, and young humans living in high-pollution areas have shown that environmental particles or infections can travel up the olfactory nerves. Scans revealed that this process triggers the same kind of inflammatory responses and brain plaques typically associated with Alzheimer's. Experts note that this research opens up new ways of understanding how the progressive condition develops. Fuente: WalesOnline #Alzheimers #BrainHealth #ScienceNews #MedicalResearch #Health
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