For example, sleep duration has declined from some 8 hours in the 1950s to 7 in recent years.
例如，睡眠时间从20世纪50年代的8小时左右下降到近年来的7小时。
bottom line is that adequate recovery-sleep duration is important for coping with the effects of chronic sleep restriction on the brain.
“说到底，充足的恢复性睡眠有助于消除长时间睡眠不足给大脑所带来的副作用”。
Short sleep duration was associated with angina, while both sleeping too little and sleeping too much were associated with heart attack and stroke, the study says.
这项研究还说,心绞痛与短时间的睡眠过程相关,而睡得太少或睡得太多同样与心肌梗塞及中风相关联。
Researchers found the ideal amount of sleep duration of seven hours per night resulted in the highest score for every cognitive measure, followed closely by six hours of nightly sleep.
结果发现，每晚睡眠7小时的中年男女在所有认知能力测试中得分最高，其次是每晚睡眠6小时的中年男女。
A study by Susan Redline and colleagues at Case Western Reserve University school of Medicine showed an inverse correlation between sleep duration and obesity in high-school-age students.
由凯斯-西部保留地大学医学院的苏珊·雷德兰及其同事进行的一项研究显示，高中生的睡眠时间与肥胖程度呈反比。
Shorter sleep duration is linked to obesity, coronary artery disease, and diabetes.
缩减睡眠时间会出现肥胖、冠状动脉疾病及糖尿病。
The researchers also point out that diabetes is not the only risk associated with sleep duration.
研究人员还指出，睡眠时间不仅仅与患糖尿病的风险相关。
Insomnia and short sleep duration, even in young children, resulted in a physiological activation of the sympathetic modulation.
失眠症和短睡眠周期，甚至在幼儿中也能导致交感神经调节的生理激活。
Sleep status was represented using sleep latency and sleep duration per night. Mood status was measured with the Profile of Mood status (POMS).
睡眠状况由睡眠潜伏期和每晚睡眠的时间来表示，情绪状态用POMS量表评定。
This new study examined whether reduced sleep duration itself may increase the risk of developing diabetes when combined with physical inactivity and overeating.
这项新研究观察了睡眠当时间短与少动及多食同时存在时，前者自身是否会增加糖尿病的危险性。
There were 34.0% students having sleepy problems, including daytime dysfunction(71.7%), sleep latency(35.6%), or poor sleep quality(30.1%), and problems in sleep duration(27.0%).
有34.0%的在校学生有睡眠质量问题，睡眠状况不佳主要体现在日间功能障碍（71.7%）、入睡困难（35.6%）、睡眠质量不佳（30.1%）和睡眠时间不足（27.0%）。
The intriguing prospect that sleep duration may play a role in how much we weigh has researchers busily conducting studies to tease out the potential relationship between shut-eye and BMI.
睡眠时间会影响体重，这个有趣的想法引起研究人员做了很多研究对睡眠和体重之间的关系进行探究。
Shorter sleep duration is linked to obesity coronary artery disease and diabetes. whether sleep deprivation during the postpartum period affects maternal postpartum weight retention remains unknown.
缩减睡眠时间会出现肥胖、冠状动脉疾病及糖尿病。而对于产后睡眠缺乏是否会影响母亲产后体重恢复尚缺乏了解。
Shorter sleep duration is linked to obesity, coronary artery disease, and diabetes. Whether sleep deprivation during the postpartum period affects maternal postpartum weight retention remains unknown.
缩减睡眠时间会出现肥胖、冠状动脉疾病及糖尿病。而对于产后睡眠缺乏是否会影响母亲产后体重恢复尚缺乏了解。
Be honest: Sleep duration and quality can be as important to your health as your blood pressure and cholesterol level.
坦率地讲，对于健康来说，睡眠时长和睡眠质量同你的血压和胆固醇水平一样重要。
Sleep duration is a modifiable risk factor with potentially important implications for obesity prevention and treatment.
睡眠时间是一个可变危险因素，对肥胖症的预防和治疗有着潜在的重要意义。
Sleep duration is a modifiable risk factor with potentially important implications for obesity prevention and treatment.
睡眠时间是一个可变危险因素，对肥胖症的预防和治疗有着潜在的重要意义。
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