Jean-Louis G, Kripke D F, Ancoli-Israel S
Department of Psychiatry, University of California San Diego, USA.
Sleep. 2000 Dec 15;23(8):1115-21.
It is commonly believed that sleep duration in the population has been declining gradually. Whereas sleep restriction in the laboratory induces sleepiness and mood disturbances, it is not certain whether a short sleep duration impairs the quality of everyday life.
Using population-based data, we explored whether greater habitual sleep duration is a predictor of better health-related quality of life, measured by the Quality of Well-Being (QWB) scale. The relationships between QWB and several potential correlates were examined in a stepwise linear regression analysis.
Neither subjective nor actigraphic sleep duration were associated with QWB. Greater quality of well-being was associated with greater sleep satisfaction, younger age, less obesity, non-Hispanic White ethnicity, and greater experienced illumination.
These data suggest that increasing sleep duration may not directly improve quality of life, despite evidence that curtailment of nocturnal sleep is associated with fatigue.
人们普遍认为人群中的睡眠时间一直在逐渐减少。虽然实验室中的睡眠限制会导致困倦和情绪障碍，但尚不确定短睡眠时间是否会损害日常生活质量。
利用基于人群的数据，我们探讨了更长的习惯性睡眠时间是否是以幸福感量表（QWB）衡量的与健康相关的生活质量更好的预测指标。在逐步线性回归分析中检查了QWB与几个潜在相关因素之间的关系。
主观睡眠时间和活动记录仪记录的睡眠时间均与QWB无关。更高的幸福感与更高的睡眠满意度、更年轻的年龄、更少的肥胖、非西班牙裔白人种族以及更高的感受光照度有关。
这些数据表明，尽管有证据表明夜间睡眠减少与疲劳有关，但增加睡眠时间可能不会直接改善生活质量。
