KINE 250 Chapter Notes - Chapter 3 (Focus On): Cardiovascular Disease, Non-Rapid Eye Movement Sleep, Theta Wave
Document Summary
Chapter 3: focus on - improving your sleep. Sleep deprivation: a condition that occurs when sleep is insufficient. Somnolence: drowsiness, sluggishness, and lack of mental alertness that can affect your daily performance + can lead to sleepiness while driving. Excessive daytime sleepiness / excessive sleepiness: condition in which a person feels a major compulsion to sleep during normal waking hours + persistent sluggishness and fatigue. Circadian rhythm: 24-hour cycle by which you are accustomed to going to sleep, waking up, and performing habitual behaviors. Melatonin: hormone that affects sleep cycles, increasing drowsiness. Rem sleep: period of sleep characterized by brain-wave activity similar to that seen in wakefulness; rapid eye movement and dreaming occur during rem sleep (25% of sleep cycle) Non-rem (nrem) sleep: period of restful sleep dominated by slow brain waves; rapid eye movement is rare (75% of sleep cycle)
