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SSS 2008-12-12

时间:2010-05-15 07:21来源:互联网 提供网友:木渐浅。   字体: [ ]
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    (单词翻译:双击或拖选)

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute.

 

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 buffet1 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 treadmill2 or spent 90 minutes lifting weights. And they found that the treadmill workout altered the production of two different hormones3 that control appetite. Whereas pumping iron only affected4 one. Which suggests that aerobic5 exercise is a better appetite suppressant than muscle building.

And the students’ stomachs agreed. Although both workouts curbed6 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 Physiology7.

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.

 

Thanks for the minute for Scientific American's 60-Second Science. I'm Karen Hopkin.

 


点击收听单词发音收听单词发音  

1 buffet 8sXzg     
n.自助餐;饮食柜台;餐台
参考例句:
  • Are you having a sit-down meal or a buffet at the wedding?你想在婚礼中摆桌宴还是搞自助餐?
  • Could you tell me what specialties you have for the buffet?你能告诉我你们的自助餐有什么特色菜吗?
2 treadmill 1pOyz     
n.踏车;单调的工作
参考例句:
  • The treadmill has a heart rate monitor.跑步机上有个脉搏监视器。
  • Drugs remove man from the treadmill of routine.药物可以使人摆脱日常单调的工作带来的疲劳。
3 hormones hormones     
n. 荷尔蒙,激素 名词hormone的复数形式
参考例句:
  • This hormone interacts closely with other hormones in the body. 这种荷尔蒙与体內其他荷尔蒙紧密地相互作用。
  • The adrenals produce a large per cent of a man's sex hormones. 肾上腺分泌人体的大部分性激素。
4 affected TzUzg0     
adj.不自然的,假装的
参考例句:
  • She showed an affected interest in our subject.她假装对我们的课题感到兴趣。
  • His manners are affected.他的态度不自然。
5 aerobic BN8zn     
adj.需氧的,增氧健身法的,有氧的
参考例句:
  • Aerobic exercise helps to build up stamina.有氧健身操有助于增强耐力。
  • Aerobic dance is conductive to the health.有氧舞蹈有助于健康。
6 curbed a923d4d9800d8ccbc8b2319f1a1fdc2b     
v.限制,克制,抑制( curb的过去式和过去分词 )
参考例句:
  • Advertising aimed at children should be curbed. 针对儿童的广告应受到限制。 来自辞典例句
  • Inflation needs to be curbed in Russia. 俄罗斯需要抑制通货膨胀。 来自辞典例句
7 physiology uAfyL     
n.生理学,生理机能
参考例句:
  • He bought a book about physiology.他买了一本生理学方面的书。
  • He was awarded the Nobel Prize for achievements in physiology.他因生理学方面的建树而被授予诺贝尔奖。
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TAG标签:   SSS  treadmill
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