The brain is the part of the central nervous system that is contained within the skull. It is responsible for executive and cognitive functions and regulates the functioning of the other parts of the ...
Loss of neurons is thought to be irreversible in the adult human brain, because dying neurons cannot be replaced. This inability to generate replacement cells is thought to be an important cause of ...
Feb. 23, 2026 Scientists have created a blood test that can estimate when Alzheimer’s symptoms are likely to begin. By measuring a protein called p-tau217, the model predicts symptom onset within ...
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