NREM
Non-dreaming sleep stage
NREM is the abbreviation for non-rapid eye movement sleep, the stages of sleep characterized by slower brain waves, reduced muscle activity, and absence of the quick eye movements seen in REM sleep.
NREM comprises most of a typical night's sleep and includes the deepest, most restorative phases: The patient spent insufficient time in NREM sleep.
Symbol denoting variation
- thetaEighth Hellenic letter
- sleep spindlesEEG bursts during light rest
- EEGNeural activity recording
- electroencephalogramBrain wave recording
brain activity · cortical · thalamus · synchronized · neuroimaging · sleep stages · stage 3 · stage 2
Condition disrupting normal rest
- sleep studyDiagnostic overnight monitoring session
- insomniaPersistent inability to rest
- sleepwalkingAmbulatory behavior during slumber
- night terrorsFrightening partial-arousal episodes
sleep apnea · bruxism · parasomnia · sleep medicine · sleep hygiene · circadian · sleep deprivation
Regaining what was lost
- tissue repairBiological wound healing process
- growth hormonePituitary signal for development
- immunityProtected from harm
- protein synthesisAssembling amino acid chains
muscle recovery · energy conservation · healing · anabolic · detoxification
delta
Symbol denoting variation
- thetaEighth Hellenic letter
- sleep spindlesEEG bursts during light rest
- EEGNeural activity recording
electroencephalogram · brain activity · cortical · thalamus · synchronized · neuroimaging · sleep stages · stage 3 · stage 2 · stage 1
sleep disorder
Condition disrupting normal rest
- sleep studyDiagnostic overnight monitoring session
- insomniaPersistent inability to rest
- sleepwalkingAmbulatory behavior during slumber
night terrors · sleep apnea · bruxism · parasomnia · sleep medicine · sleep hygiene · circadian · sleep deprivation
recovery
Regaining what was lost
- tissue repairBiological wound healing process
- growth hormonePituitary signal for development
- immunityProtected from harm
protein synthesis · muscle recovery · energy conservation · healing · anabolic · detoxification
NREMREM
Acronym for dreaming phase
REM sleep · rapid eye movement sleep · wakefulness · arousal