Aβ	Amyloid beta
ALFF	Amplitude of Low-Frequency Fluctuations
AD	Alzheimer’s disease
ADNI	Alzheimer’s Disease Neuroimaging Initiative
AHI	Apnea–hypopnea index
ALPS	Analysis along the perivascular space
ARIC	Atherosclerosis Risk in Communities
ARWMC	Age-related white matter change
BAG	Brain age gap
CARDIA	Coronary Artery Risk Development in Young Adults
CBF	Cerebral blood flow
CNN	Convolutional neural network
CPAP	Continuous positive airway pressure
CRP	C-reactive protein
CSF	Cerebrospinal fluid
DMN	Default mode network
DTI	Diffusion tensor imaging
FA	Fractional anisotropy
fALFF	Fractional amplitude of low-frequency fluctuation
FHS	Framingham Heart Study
fMRI	Functional MRI
G/L	Granulocyte-to-lymphocyte
GM	Gray matter
GMC	Gray matter concentration
GMV	Gray matter volume
HABS-HD	Harvard Aging Brain Study-Health Disparities
MAE	Mean absolute error
MD	Mean diffusivity
ML	Machine learning
MMSE	Mini-Mental State Examination
MRI	Magnetic Resonance Imaging
N2	Stage 2 non-REM sleep
OSA	Obstructive sleep apnea
PLT	Platelet
PSG	Polysomnography
PSQI	Pittsburgh Sleep Quality Index
RCT	Randomized controlled trial
ReHO	Regional Homogeneity
REM	Rapid eye movement
RST	Randomized controlled trial
SF	Sleep fragmentation
SPM	Statistical Parametric Mapping
SWS	Slow-wave sleep
TBSS	Tract-based spatial statistics
TSD	Total sleep deprivation
TST	Total sleep time
WASO	Wake after sleep onset
WBC	white blood cell
WM	White matter
WMH	White matter hyperintensity