原文视听

These were long sleepers

这些人的睡眠时间都很长

older adults, ages

老年人 年龄在

I shouldn't say "older"

我不应该说他们是老年人

When I first did the study

当我刚开始做研究的时候

I used to think 50-year-old were older

我觉得50多岁算老年人

so I won't go on older anymore

所以我已经老得不能再老了

8.5 hours or more

这些人每天睡8.5个小时

so we call "middle-aged adults."

我们姑且称他们为"中年人"

And they were randomized to

我们把他们随即分配到

either a "90-minute time in bed restriction" condition

"90分钟睡觉限制"的控制小组

so they if they were 8.5 hours

因此 如果他们的睡眠时间为8.5个小时

they were taking down to 7 hours, or a controlled condition

然后给他们降到控制条件下的7个小时

and it was interesting that it didn't have any effect on the body weight

有趣的是 这一变化并没有改变他们的体重

but interestingly

有意思的是

that the ones in the "90-minute time in bed restriction" condition

在"90分钟睡觉限制"条件下

had an increase in wrist actigraphic measures of physical activity

这些人腕动仪测量到的体力活动有所提高

Now that's not nearly as good

这一测量结果

as having actigraphic measures at the waist

没有腰部运动测量仪测量到的结果好

in terms of estimating energy expenditure

也就是测量到底能量消耗量没有那么大

but nevertheless

但无论如何

that's kind of interesting

一个有趣的结果是

that the experimental reduction of time in bed

在试验条件下

in the long sleepers

缩短长期睡眠者的睡眠时间

actually resulted in the increase in the activity levels

的确提高了他们体力活动的水平

So in summary

所以小结一下

how might physical activity moderate the association

体力活动如何调节了肥胖与睡眠长短的关系

or does it?

或者是否真的起到了调节作用?

Fatigue associated with short sleep could lead to less physical activity

睡眠不足引发的疲劳会使人减少体力活动的时间

There are surveys that support this

有调查支持这一结论

Some with experimental evidence

有的是通过试验来证明这一结论的

by Bromley and colleagues supporting this

例如布朗姆利及其同事的研究就支持这一结论

课程简介和演讲视频

课程简介
本套课程讲解了睡眠对健康的多重影响。睡眠不足会改变身体的内分泌系统，打破激素的平衡，扰乱大脑对食物的选择和摄取从而引发肥胖，严重影响胰岛素的平衡进而引发糖尿病。不同年龄段的人群有不同的睡眠需求，一般而言，年轻人的睡眠需求高于老年人，但所有成年人都应保证每天8小时的睡眠时间。

老年人的睡眠时间减少并不是生理变化的自然结果，而是其他疾病造成的影响，衰老本身并不会降低睡眠需求。常见的睡眠障碍包括失眠、睡眠呼吸障碍、四肢不宁综合症、快速眼动期行为失调，患者需要就具体的睡眠障碍咨询专业的睡眠医生，确诊后有针对性的改善睡眠，进而提高整体的健康状况。

不同的睡眠障碍有不同的治疗方式，但认知行为疗法是所有治疗方法的首选，其次是器械治疗、药物治疗以及外科手术治疗。患者应养成良好的睡眠习惯，培养“睡眠卫生习惯”，改善睡眠质量，尽量避免擅自用药和药物滥用。