Department of Economics, University of Pittsburgh, Pittsburgh, PA 15260.
Department of Social and Decision Sciences, Carnegie Mellon University, Pittsburgh, PA 15213.
Proc Natl Acad Sci U S A. 2021 Mar 2;118(9). doi: 10.1073/pnas.2016632118.
Using a longitudinal dataset linking biometric and survey data from several cohorts of young adults before and during the COVID-19 pandemic ([Formula: see text]), we document large disruptions to physical activity, sleep, time use, and mental health. At the onset of the pandemic, average steps decline from 10,000 to 4,600 steps per day, sleep increases by 25 to 30 min per night, time spent socializing declines by over half to less than 30 min, and screen time more than doubles to over 5 h per day. Over the course of the pandemic from March to July 2020 the proportion of participants at risk for clinical depression ranges from 46% to 61%, up to a 90% increase in depression rates compared to the same population just prior to the pandemic. Our analyses suggest that disruption to physical activity is a leading risk factor for depression during the pandemic. However, restoration of those habits through a short-term intervention does not meaningfully improve mental well-being.
利用一项将生物识别数据和调查数据链接到几个年轻人队列的纵向数据集，这些队列在 COVID-19 大流行之前和期间收集([公式：见正文])，我们记录了身体活动、睡眠、时间利用和心理健康的重大干扰。在大流行开始时，平均步数从每天 10000 步下降到 4600 步，每晚睡眠时间增加 25 到 30 分钟，社交时间减少一半以上至不到 30 分钟，屏幕时间增加一倍以上至每天超过 5 小时。在 2020 年 3 月至 7 月的大流行期间，有临床抑郁风险的参与者比例从 46%到 61%不等，与大流行前同一人群相比，抑郁率上升了 90%。我们的分析表明，在大流行期间，身体活动的中断是导致抑郁的主要风险因素。然而，通过短期干预恢复这些习惯并没有显著改善心理健康。
