Heavy media use interferes with sleep by reducing sleep duration.
大量使用媒体设备会缩短睡眠时间，从而干扰睡眠。
Diet also has a greater impact than physical activity, watching TV or sleep duration.
饮食关于身体安康的影响远远超越了体育运动、看电视频率以及睡眠的时间。
Nearly two thirds of the teenagers with short sleep duration also had low sleep efficiency.
将近三分之二短睡眠时间的青少年也有睡眠效率也降低。
Objective To investigate the relation of sleep duration and physical activity (PA) level to obesity.
目的：通过大样本横断面研究，初步探讨睡眠时间、身体活动水平和肥胖的关系。
Objective To investigate the relation of sleep duration and physical activity (PA) level to obesity.
目的：通过大样本横断面研究，初步探讨睡眠时间、身体活动水平和肥胖的关系。
应用推荐