Different Exercise Affects Appetite Differently

　　Well, here I am on my exercise bike, anticipating the excesses of the holidays. All those cookies and candies and maybe a glass or two of eggnog. At the very least, I figure maybe a few good turns on the exercycle will keep me from snacking before I hit the buffet table.

　　But a new study from the U.K. suggests that when it comes to suppressing appetite, not all exercise is created equal. The researchers followed 11 male university students as they jogged for an hour on a treadmill or spent 90 minutes lifting weights. And they found that the treadmill workout altered the production of two different hormones that control appetite. Whereas pumping iron only affected one. Which suggests that aerobic exercise is a better appetite suppressant than muscle building.

　　And the students’ stomachs agreed. Although both workouts curbed the students’ appetities, the run left them even less hungry than the weight lifting, results that appear in the online edition of the American Journal of Physiology.

　　Lucky for me, it looks like I’m ok with the exercise bike. But don’t worry if dumbbells are your thing. I’m sure lifting weights can also keep you from noshing. As long as you’re holding them while you’re at the party.

　　不同锻炼方式对食欲的影响不一样

　　我骑在我的健身自行车上，想像着节日里将要吃到的数不胜数的美食：所有的饼干和糖果，或许还会喝上一两杯蛋蜜乳。我算计着多踩几下自行车至少能帮助我在吃自助餐前不去动小吃了。

　　但是来自英国的一项新研究提示到，对于抑制食欲来讲，并非所有的锻炼都能起到同样的作用。研究者们对11名在跑步机上进行了一个小时的慢跑，或者进行了90分钟的举重锻炼后的男性大学生做了跟踪研究，他们发现在跑步机上的锻炼影响了两种不同的控制食欲的荷尔蒙的生成，但是举杠铃只能影响其中一种。这表明有氧锻炼比肌肉锻炼能起到更好的抑制食欲的作用。

　　同时这些学生的胃也不反对这个结果。虽然上述两种锻炼都能抑制这些学生的胃口，但是与举重相比，跑步让他们饥饿感更弱一些。这项研究在线发表在《美国生理学杂志》上(American Journal of Physiology)。

　　看来我选择健身自行车是对的。但是如果你就喜欢力量锻炼，这也没有什么好担心的。我确信只要你在聚会上举着哑铃，举重一样也能抑制你的吃点心的欲望。

　　Vocabulary:

　　Anticipate: 预期；期待

　　Excess: 过剩

　　Eggnog: 蛋蜜乳(一种饮料)

　　Exercycle：健身脚踏车

　　Snack: 小吃

　　Buffet：自助餐

　　Suppress: 抑制

　　Jog: 慢跑

　　Treadmill: 跑步机

　　Workout: 锻炼

　　Aerobic: 有氧的

　　Curb: 控制

　　Physiology：生理学

　　Dumbbell: 哑铃

　　Nosh: (俚语)吃点心、快餐