评论
打印
Now Chaput
夏普特的研究
remember I showed these data a little earlier
还记得刚才我给大家看过这些数据吗
Now again, long sleep in these data
这些数据再次显示
were also associated with weight gain
长期睡眠和体重增加有关
So I'll talk about how
我要讲到
what are potential mechanisms by which physical activity
体力活动通过什么样的潜在机制
might moderate the association of long sleep with obesity
调节了长期睡眠和肥胖症之间的关系
First, long sleep represents 1-2 hours
首先 长期睡眠意味着
of extra sedentary behavior
增加了1到2小时的静态活动
And if you are spending 8, 9 or 10 hours in bed
如果你在床上睡了8 9或10个小时
there's less time available for physical activity during the day
那么你白天从事体力活动的时间就变少了
And studies by David Daggies and colleagues
大卫戴吉斯及其同事在一项
supported this in the American time use survey
关于美国人时间使用的研究中支持了这一结论
There's just not that much time in the day for people
对于生活较为活跃的人们来说
who have very active lives and so on
(睡眠太长)意味着他们白天的时间不足
And we've all experienced this
我们都有这样的经历
If we spend a lot of time in bed
如果我们周末或假期
on the weekends or on the holidays
在床上多睡了一会儿
we often tend to feel lethargic
那么我们常常会感到昏昏欲睡
So this has been known for decades now
我们几十年前就知道了这个结论
beginning with studies with astronauts back in the 60s
最早是20世纪60年代对宇航员的研究发现的
that one of the hazard things you can do to somebody
对于一个人来说最危险的一件事是
is have them spend prolonged time in bed
让他们在床上呆上很长时间
after a week, even after a few days
一周或几天时间
you see things
你就会看到变化
But after weeks to months
几周或几个月之后
you start to see cardiac atrophy
人们会出现心脏萎缩
You also see insulin resistance, inflammation
胰岛素抗性 感染
muscle wasting, loss of bone density, and so on
肌肉萎缩 骨密度下降 等等状况
