美国科学60秒 SSS 2013-05-28

We've discovered that Vitamin C kills MT cells. TB research William Jacob, with the Albert Einstein College of Medicine in the Bronx. And in fact it works not only on the multidrug-resistent strains but totally drug-resistent strains as well. Jacobs

美国英语听力80篇4 Lesson64

[00:07.52] You probably know a famous saying about the importance of eating apples [00:14.58]It is,An apple a day keeps the doctor away. [00:19.83]Now,a new American study shows eating apples may help fight cancer,too. [00:28.16]Research scientists a

【美国总统电台演说】2007-11-17

THE PRESIDENT: Good morning. In a few days, our Nation will celebrate Thanksgiving. Like millions of Americans, members of Congress will travel home for the holiday. Unfortunately, as they get to work carving their turkeys, they're leaving a lot of

9-15 为什么水果和蔬菜是健康的首选？

Why Fruit and Vegetables Are the Tops for Good Health? They used to say an apple a day keeps the doctor away. And according to the Department of Health, years of research shows that eating fruit and v

英语音频杂志：冰淇淋和银行业

Ice-cream and banking By John Kuti Russian ice-cream is great. Any shop or street seller can offer a choice of different ones for less than ten roubles, thats about 20p in British money, which I think is a fair price. They have natural fruit flavours

60秒科学:Vitamins Block Some Exercise Benefits

Exercise is good for you. Antioxidants are good for you. But put them together and its not as good as youd think. Because a recent study shows that some vitamins block the beneficial effects of exercise. A good workout not only gets your heart pumpi

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The jury is still out on whether vitamin C can treat or prevent a cold, but a recent review of the scientific literature suggests that it does have some benefits. 虽然维生素C能否治疗或预防感冒依然没有定论，但是最近的一项科学

CNN 2011-03-13

Here are some of the other stories we are watching this hour. It's a rough start on Wall Street, unfortunately, this morning. Just after the opening bell, the Dow plunged 150 points, and the view hasn't gotten much better from there. Investors are re

SSS 2009-10-12

Youve no doubt heard of free radicals, those nasty chemicals that seem to contribute to heart disease, cancer and all sorts of human ailments. Maybe you even take antioxidant vitamins to help get rid of these unwanted toxins. Well, maybe you shouldnt

SSS 2009-03-13

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. If you get a scratch, your skin can heal itself. But if your car gets scratched, it stays scratched. Scientists at the University of Southern Mississip

SSS 2009-05-12

This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. Exercise is good for you. Antioxidants are good for you, but put them together, and its not as good as you think because a recent study shows that some v

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60秒科学:Antioxidants-Diabetes Connection

Antioxidants-Diabetes Connection In a study in the journal Cell Metabolism, some mice given antioxidants were more likely to become diabetic, because free radicals help muscle cells respond to insulin. Karen Hopkin reports. Youve no doubt heard of fr

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每天两餐西红柿 永葆肌肤年轻

At this rate, scientists will have to come up with a better description for the tomato than mere 'superfood'. While it has long been credited with cutting cholesterol and preventing some cancers, the fruit now appears to have two more healthgiving be

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英语博客：Strength and flexibility.

I was just listening to a Swiss podcast about health. The presenters were talking about free radicals and how to fight them. They first of all listed all the situations in life that cause free radicals to be produced in our bodies: emotional and phys

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