「深層睡眠」是非快速動眼睡眠的第三階段,特徵是腦波出現明顯的慢波。在此階段,副交感神經系統會占主導地位,降低心率、呼吸頻率和代謝需求,而交感神經系統則受到抑制。 這種自律神經的轉換是為了停止日常損耗,降低能量消耗,身體才能啟動組織器官和免疫系統的修復工作。交感神經系統被抑制,能讓心血管系統休息,幫助身體從白天的壓力中復原。 健康的成年人,深層睡眠會佔整晚睡眠時間的15%~ 25%。 “Deep sleep” is the third stage of non-rapid eye movement sleep with distinctive slow-wave. During this phase, the parasympathetic nervous system dominates, significantly slowing heart rate, breathing rates, and metabolic demand, while the sympathetic nervous system is suppressed. This halts daily wear and tear, lowering energy expenditure to power physical recovery, tissue repair, and immune system reinforcement. The suppression of sympathetic nervous system allows your cardiovascular system to rest and recover from daytime stress. Deep sleep typically comprises 15% to 25% of a healthy adult’s total night's rest. 上圖是一個 睡眠片段化 的案例,可以看到綠色的 慢波睡眠 相當少,睡眠相當破碎,而且幾乎沒有深層睡眠。(本人不一定記得自己有醒來或做夢,只會覺得沒睡飽) 除了睡眠階段圖,睡眠片段化也會顯示在高比例的WASO。WASO就是入睡後又醒來的時間,WASO > 30分鐘就是具有臨床意義的睡眠片段化,而WASO > 60分鐘則代表嚴重失眠。 T...