Do changes in the brain take place with alzheimers begion after first sign of memory loss?

Yes, changes in the brain associated with Alzheimer's disease typically begin well before the first signs of memory loss are observed. These changes include the accumulation of amyloid plaques and tau tangles, which disrupt communication between neurons and lead to cell death. Research suggests that these pathological processes can start years or even decades prior to noticeable cognitive decline. Therefore, early detection and intervention are crucial for managing the progression of the disease.