HTH 100 Ch. 4 Flashcards
Sleep Deprivation
A condition that occurs when sleep is insufficient
Somnolence
Drowsiness, sluggishness, and lack of mental alertness that can affect your daily performance and lead to life-threatening sleepiness while driving
Excessive Daytime Sleepiness
A disorder characterized by unusual patterns of falling asleep during normal walking hours
Primary Idiopathic Hypersomnia
Excessive Daytime Sleepiness without narcolepsy or the associated features of other sleep disorders
Circadian Rhythm
The 24-hour cycle by which you are accustomed to going to sleep, waking up, and performing habitual behaviors
Melatonin
A hormone that affects sleep cycles, increasing drowsiness
REM Sleep
A period of sleep characterized by brain-wave activity similar to that seen in wakefulness in which rapid eye movement and dreaming occur
Non-REM (NREM) Sleep
A period of restful sleep dominated by slow brain waves; during non-REM sleep, rapid eye movement is rare
Sleep Debt
The difference between the number of hours of sleep an individual needed in a given time period and the number of hours he or she actually slept
Sleep Inertia
A state characterized by cognitive impairment, grogginess, and disorientation that is experienced upon rising from short sleep or an overly long nap
Sleep Disorders (Somnipathy or Dyssomnia)
Any medical disorders that have a negative effect on sleep patterns
Sleep Study
A clinical assessment of sleep in which the patient is monitored while spending the night in a sleep disorders center
Insomnia
A disorder characterized by difficulty in falling asleep quickly, frequent arousals during sleep, or early-morning awakening
Sleep Apnea
A disorder in which breathing is briefly and repeatedly interrupted during sleep
Restless Legs Syndrome (RLS)
A neurological disorder characterized by an overwhelming urge to move the legs when they are at rest
