双语：付出劳动越多 食物越美味

　　According to the Daily Telegraph of November 8, the feeling that you have earned a reward actually increases the pleasure you take from it, a new study suggests。

　　Now the authors believe this principle could be used to train people to like more healthy food over sugary and fatty snacks。

　　Alexander Johnson, a psychologist at Johns Hopkins University in Baltimore, said: "Basically, what we have shown is that if you have to expend more effort to get a certain food, not only will you value that food more, but it might even taste better to you. At present, we don't know why effort seems to boost the taste of food, but we know that it does, and this effect lasts for at least 24 hours after the act of working hard to get the food."

　　The study seems to suggest that hard work can even enhance our appreciation for fare we might not favour, such as the low-fat, low calorie variety。

　　The experiments, published in the Proceedings of the Royal Society B, were on mice but it is believed they are transferable to humans。

　　Mr. Johnson said: "We then analysed the way in which the mice consumed the food. Why did we do this? Because food intake can be driven by a variety of factors including how it tastes, how hungry the mice were beforehand and how 'sated' or full the food made them feel."

　　Mr. Johnson and Professor Gallagher used licking behavior as a measure of the rodents' enjoyment of their treats。

　　It found the mice that had to work harder for their low-calorie rewards were more likely to keep licking their lips and savouring it。

　　据英国《每日电讯报》11月8日报道，一项最新研究表明，获得奖励会增加人们的快乐感。

　　现在，研究作者认为这一原则可以让人们爱上健康食物，舍弃含糖和高脂肪食物。

　　巴里摩尔约翰•霍普金斯大学心理学家Alexander Johnson表示："我们的研究结果基本上显示，人们不仅会更加珍惜通过辛勤努力获取的食物，而且会觉得食物更加香甜可口。目前，我们尚未了解为什么劳动会让食物尝起来更加美味，然而事实的确如此。通过劳动努力获取食物的成就感会持续至少24小时。"

　　这项研究似乎表明，我们可能会更加珍惜努力劳动换取的食物，即使是那些我们并不喜欢的食物， 如低脂肪、低热量食品。

　　此项刊登在英国皇家学会学报B版的研究实验，虽然实验对象是小老鼠，但是专家相信结论对人类同样适用。

　　Johnson说："我们对老鼠食用食物的方式进行分析。我们为什么要这样做呢？是因为老鼠食物摄取量由多种因素决定，包括食物味道如何，实验前老鼠的饥饿程度以及食物本身的油腻感和饱食感等等。

　　Johnson 先生和Gallagher教授用动物的舔舐行为来判断他们享受美食的快乐程度。

　　结果发现，那些不得不勤劳努力以换取低热量食物的老鼠不停地舔舐自己的嘴唇来品尝食物，(表示食物很美味)。