纪录片《节食还是截寿》 第8期:低热量饮食能长寿

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 expectancy¹ increased by a remarkable² 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 severely³ 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 restriction⁴ and longevity⁵ in humans.

低热量饮食与人类长寿之间的联系

1 expectancy   

n.期望，预期，（根据概率统计求得）预期数额

参考例句：

• Japanese people have a very high life expectancy.日本人的平均寿命非常长。
• The atomosphere of tense expectancy sobered everyone.这种期望的紧张气氛使每个人变得严肃起来。

2 remarkable   

adj.显著的，异常的，非凡的，值得注意的

参考例句：

• She has made remarkable headway in her writing skills.她在写作技巧方面有了长足进步。
• These cars are remarkable for the quietness of their engines.这些汽车因发动机没有噪音而不同凡响。

3 severely   

adv.严格地；严厉地；非常恶劣地

参考例句：

• He was severely criticized and removed from his post.他受到了严厉的批评并且被撤了职。
• He is severely put down for his careless work.他因工作上的粗心大意而受到了严厉的批评。

4 restriction   

n.限制，约束

参考例句：

• The park is open to the public without restriction.这个公园对公众开放，没有任何限制。
• The 30 mph speed restriction applies in all built-up areas.每小时限速30英里适用于所有建筑物聚集区。

5 longevity   

n.长命；长寿

参考例句：

• Good habits promote longevity.良好的习惯能增长寿命。
• Human longevity runs in families.人类的长寿具有家族遗传性。