纪录片《节食还是截寿》 第8期:低热量饮食能长寿(在线收听

During the darkest years

在经济大萧条

of Great Depression - 1929 to 1933

最黑暗的1929至1933年间

life expectancy increased by a remarkable six years.

人均寿命显著增加 延长了六年

Now, on the face of it, that is really surprising,

乍看之下 这实在令人惊讶

and yet, clues as to why could also be found

然而 关于这种现象的原因

from research done back in the 1930s.

在三十年代的研究中就已经发现

Nutritionists at Cornell University working with animals

康乃尔大学的营养学家进行动物试验

discovered that if you severely restrict

发现如果严格限制

the amount they eat, they live longer.

动物的摄入量 它们寿命更长

Much, much longer.

且长寿很多

So the next obvious question -

那么下一个显而易见的问题

if you do the same with humans,

如果在人类身上进行

will it have the same effects?

会有相同的效果吗

Well, it's been eight decades since that observation,

那项实验距今已过了八十年

and only now are scientists really beginning to understand

现在科学家们才真正开始了解

the link between calorie restriction and longevity in humans.

低热量饮食与人类长寿之间的联系

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