Disturbed sleep can be a cause and a consequence of elevated stress. Yet intensive longitudinal studies have revealed that sleep assessed via diaries and actigraphy is inconsistently associated with daily stress.

中文翻译：

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每日压力和睡眠周期：睡眠测量很重要。

睡眠障碍可能是压力升高的原因和结果。然而，深入的纵向研究表明，通过日记和活动记录评估的睡眠与日常压力并不一致。