纪录片《饮食变迁》 第15期:脂肪发生了质的改变（在线收听）

If you should weigh 12 stone and in fact weigh 16,

若合理体重是12英石 但你却有16

then your chances of death from a heart attack are 50% more.

那你死于心脏病的几率会增加50%

With overweight goes high blood pressure,

超重还会导致高血压

and that makes the heart work harder,

使得心脏难以负荷

and high fats in the blood itself,

而血液中脂肪含量过高

which makes it clot and cause thrombosis.

会导致血液凝结 形成血栓

But it's not only how much we eat, but what we eat.

除了关注吃多少 吃什么也很重要

With the can and packet revolution

随着罐头和独立包装的广泛运用

has come an outstanding change in our fats.

我们摄入的脂肪发生了质的改变

What's important are the

问题的关键就是

proportions of unsaturated and saturated fats.

饱和与不饱和脂肪间的比例

These farm animals are different from those of 50 years ago.

这些家畜和50年前早已大相径庭

Beef not only contains much more fat,

牛肉里脂肪含量大大增加

but it's the saturated kind.

而其属于饱和脂肪

These huge quantities of hard

大量此类脂肪酸酯

fat are causing the epidemic of coronary disease.

使冠心病盛行开来

It would be another 20 years

我们至少还需花上20年

before the connection between heart disease

才能准确明了地得出

and the increased levels of saturated

心脏病与日常饮食中

fat in our diet could be graphically demonstrated.

不断增长的饱和脂肪含量间的联系

A lot of people think that obesity is a cosmetic issue,

多数人觉得肥胖不过影响外表美观

not fitting into a dress or something like that.

顶多是穿不了漂亮的衣服云云

But it's not.It lies at the heart

其实这是一大批

of a host of medical illnesses and diseases.

医学疾病的核心问题

This is serum from a healthy patient.

这是从一名健康的患者身上提取的血清

The blood has been spun to separate and take the red cells away.

我们将红细胞从中分离出去

A slightly yellow colour but quite clear.

可以看到它呈浅黄色 但很清澈

This is serum from a person who is clinically obese.

这个则是临床诊断为肥胖症患者的血清样本

It looks almost like milk, it's so cloudy.

看上去就像牛奶 很浑浊

And what's causing that is all the fat globules

区别源自我们体内

and the fat that is circulating in the blood around the body.

在血液中循环往复的脂肪球与脂肪

Not only does that cause a narrowing of the arteries,

这不仅会导致动脉狭窄

slowing the flow of blood and delivery of oxygen to the tissues.

还会减缓血流量 阻碍其向组织供氧

It actually causes damage and a secondary process

这将会危害健康

starts which leads to further damage to those blood vessels.

进而对血管造成更大的危害