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SLeep:体重变化相比原始体重而言更易影响民众的睡眠质量

2016-01-01 QQduhp 译 MedSci原创

既往研究表明,持续睡眠状态或睡意(白天缺乏活力、睡眠质量差)与肥胖有关。 但直到现在,研究人员对肥胖与不良的饮食习惯和睡眠/唤醒异常之间的关系知之甚少。在美国,近1.85亿名成年人和2400万名儿童表现为超重或肥胖。在费城,肥胖或超重的成年人约占68%。 CDC估计,美国约有5-7千万名成年人有睡眠问题。睡眠不足会导致民众认知功能障碍,并出现许多慢性健康问题如抑郁症、肥胖和高血压。 佩雷尔曼医学院

既往研究表明,持续睡眠状态或睡意(白天缺乏活力、睡眠质量差)与肥胖有关。 

但直到现在,研究人员对肥胖与不良的饮食习惯和睡眠/唤醒异常之间的关系知之甚少。在美国,近1.85亿名成年人和2400万名儿童表现为超重或肥胖。在费城,肥胖或超重的成年人约占68%。 

CDC估计,美国约有5-7千万名成年人有睡眠问题。睡眠不足会导致民众认知功能障碍,并出现许多慢性健康问题如抑郁症、肥胖和高血压。 
佩雷尔曼医学院的研究人员在宾夕法尼亚大学开展研究,旨在探索体重的波动对睡眠的影响。研究人员采用肥胖小鼠开展研究。

一半数目的小鼠被随机分配到普通食物(RC)组(对照组);而其他小鼠则被饲喂高脂肪饮食(HFD,脂肪含量高出三倍以上),即实验组;实验为期8周。 

第八周后,一些老鼠转向另一种饮食并为期一个星期,因此导致刚开始饲喂HFD食物的小鼠体重增加,刚开始饲喂RC的小鼠体重减轻,而其余小鼠继续最初饮食不变。 

第九周,相比饲喂RC食物的小鼠而言,饲喂HFD食物的小鼠体重增加了30%,每天睡眠时长超过1小时。 

而发生饮食转换的小鼠体重相似,但是它们的睡眠效果完全不同。食用一周RC饮食的小鼠同食用RC饮食9周的小鼠睡眠/觉醒效果相似。 

换句话说,这是最后一周的饮食对其睡眠效果的影响至关重要,而无关乎原始体重。

宾夕法尼亚大学神经科学Isaac Perron博士认为,这一发现表明体重变化对睡眠状况的调节比原始体重更加重要。如果你超重,经常感到很累,你可能不需要减掉所有重量来提高睡眠质量,而是仅需要把最初多余的重量减掉便可能改善你的睡眠状况。 

研究人员建议,改变饮食结构可以让民众白天更清醒,以激励他们有更健康的生活方式。 

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    2016-05-07 1dd8c52fm63(暂无匿称)

    胖子好可怜!

    0

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    2016-01-05 lyrichen

    胖子不好睡

    0

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