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Brain’s ‘wakeful rest’ network may be key to Alzheimer’s risk

If you have ever let your mind wander, you have relied on the brain’s default mode network (DMN). Scientifically, the DMN is a connection of brain regions that interact when a person is in a state of wakeful rest. This network is important for using our short-term memory, posing the question: Do changes in the DMN play a key role in the short-term memory loss seen in the progression of Alzheimer’s disease (AD)? And is the DMN affected differently in women and men?