窈窕淑女: 睡眠不足可導致發胖哦大綱

Not getting enough sleep doesn’t just make you tired. It also makes you fat because of increased snacking, according to researchers at the University of Colorado Boulder in America。

美國科羅拉多大學波德分校的研究人員表示，睡眠不足不僅令人疲乏，還會使人因吃更多零食而發胖。

The researchers carried out a study which included eight men and eight women, whose average age was 22, and found that participants who lacked sleep for a week gained almost two pounds。

研究者們在平均年齡爲22歲的8名男性和8名女性當中進行了一項研究，由此發現那些一個星期都睡眠不足的研究對象的體重增加了近2磅(約0.9公斤)。

To establish a baseline, participants spent the first three nights sleeping up to nine hours a night, and consumed only as many calories as they burned each day. Their daily intake of food and oxygen, and production of carbon dioxide were measured。

爲了建立標準，研究對象前3個晚上都可擁有長達9小時的夜間睡眠，並且每天只攝入與所消耗的熱量相等的能量。他們每日攝取的食物、呼吸的氧氣，以及排出的二氧化碳均被納入測量範圍。

Then participants were split into two groups, with one limited to sleeping five hours a night, while the other continued to be allowed nine hours. After five nights, the groups switched. During this part of the experiment, participants were allowed to eat as much as they wanted。

接着，研究對象被分爲兩組，其中一組每晚只睡5小時，而另一組仍睡9小時。5天后，兩組情況交換。在這部分實驗中，研究對象可以想吃多少就吃多少。

The researchers found that participants burned about 5 percent more calories when their sleep was limited to five hours, but they consumed about 6 percent more calories, compared with when they were allowed nine hours。

研究者發現，與睡9小時的情況相比，研究對象在睡5小時時要多消耗大約5%的能量，而他們攝入的能量卻要多出大約6%。

Although the participants ate less at breakfast when they had five hours of sleep, they ate more over the rest of the day; they especially consumed an increased number of calories in the form of snacks after the dinner and finally gained weight. When they shifted to adequate sleep patterns they shed the pounds。

儘管研究對象在睡5個小時時早餐吃得較少，但是他們在接下來的一整天都會吃得更多，尤其是在晚餐後通過吃零食攝取更多能量，最終使體重增加。轉到睡眠充足的模式後，他們就會減輕體重。

Professor Ken Wright, one of the researchers, said extra sleep by itself isn’t going to lead to weight loss, and suggested that people who want to lose weight should pay attention to their sleep。

研究者肯-萊特教授表示，多睡覺不會達到減肥的效果，並建議想減肥的人注意自己的睡眠。