运动量少、与同伴聚会少、阅读印刷媒体（即报纸）少都与幸福感较低有关，但令人惊奇的是，做作业的时间少也与幸福感较低相关。
Less sport, and fewer meetings with peers correlated with lower wellbeing, as did less time reading print media (newspapers) and, surprisingly, less time doing homework.
调查显示，看电视过多会让孩子出现睡眠不良和运动量少等问题。
Studies have shown that excessive TV watching is linked to difficulty in sleeping, behavioural problems and increased obesity in children.
周一，网上发表在《小儿科》杂志的研究表明，母亲每周进行的运动量比没有孩子的母亲的6小时少，只有4.5小时。
In the study, published online Monday in the journal Pediatrics, moms got less exercise per week, 4.5 hours of physical activity compared with the 6 hours that non-mothers got.
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