Human aging aging 2 human 2 4 aminobutyric acid 1 Aging 1 Alzheimer disease 1 Alzheimer's disease 1 Biological networks 1 Biology 1 Condition 1 Dynamic aging 1 Dynamic biological network 1 Dynamics 1 Forecasting 1 Gene expression 1 Humans 1 Locus coeruleus 1 Network data 1 Network propagation 1 Norepinephrine 1 Protein-protein interaction networks 1 Proteins 1 REM sleep 1 Review 1 Sleep microstructure 1 Sleep-wake regulation 1 Specific information 1 Subnetworks 1 Tau pathology 1 acetylcholine 1