評論
打印
Now Chaput
夏普特的研究
remember I showed these data a little earlier
還記得剛才我給大家看過這些數據嗎
Now again, long sleep in these data
這些數據再次顯示
were also associated with weight gain
長期睡眠和體重增加有關
So I'll talk about how
我要講到
what are potential mechanisms by which physical activity
體力活動通過什么樣的潛在機制
might moderate the association of long sleep with obesity
調節了長期睡眠和肥胖癥之間的關系
First, long sleep represents 1-2 hours
首先 長期睡眠意味著
of extra sedentary behavior
增加了1到2小時的靜態活動
And if you are spending 8, 9 or 10 hours in bed
如果你在床上睡了8 9或10個小時
there's less time available for physical activity during the day
那么你白天從事體力活動的時間就變少了
And studies by David Daggies and colleagues
大衛戴吉斯及其同事在一項
supported this in the American time use survey
關于美國人時間使用的研究中支持了這一結論
There's just not that much time in the day for people
對于生活較為活躍的人們來說
who have very active lives and so on
(睡眠太長)意味著他們白天的時間不足
And we've all experienced this
我們都有這樣的經歷
If we spend a lot of time in bed
如果我們周末或假期
on the weekends or on the holidays
在床上多睡了一會兒
we often tend to feel lethargic
那么我們常常會感到昏昏欲睡
So this has been known for decades now
我們幾十年前就知道了這個結論
beginning with studies with astronauts back in the 60s
最早是20世紀60年代對宇航員的研究發現的
that one of the hazard things you can do to somebody
對于一個人來說最危險的一件事是
is have them spend prolonged time in bed
讓他們在床上呆上很長時間
after a week, even after a few days
一周或幾天時間
you see things
你就會看到變化
But after weeks to months
幾周或幾個月之后
you start to see cardiac atrophy
人們會出現心臟萎縮
You also see insulin resistance, inflammation
胰島素抗性 感染
muscle wasting, loss of bone density, and so on
肌肉萎縮 骨密度下降 等等狀況
