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CNN双语新闻(翻译+字幕+讲解):探寻人工甜味剂的健康奥秘

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So,while they are not natural,artificial sweeteners are chemical compounds.
They are sweet.
They can be used in everything from gum to yoghurt.
Cupcakes to diet sodas.
And they have no calories in many cases unlike actual sugar,which has about 16 calories in a teaspoon.
But does that mean the artificial stuff is healthier and that it will help you lose weight?
Not necessarily.
Let's talk about diet sodas.
You see them everywhere,from people who look like they might be trying to lose weight to people who clearly just love the drinks.
But are they actually living up to their diet name?
What is exactly in diet soda?
What does it do to our bodies?
Does it actually help us lose weight?
There are five different kinds of FDA approved artificial sweeteners and when you pick up a diet soda,the sweetener you most likely to aspartame,which is composite of two amino acids-aspartic acid and phenylalanine.
Got it?
Now,one of the more popular rumors about the sweeteners and diet soda is that it can cause cancer.
And while there have been a few studies that linked different sweeteners to cancer in rats,scientists don't think there's the same risk in humans,but this doesn't mean that this fake sugars don't do some funky stuff to our bodies.
Sweeteners such as aspartame actually trigger our body's taste receptions and trick them into believing it's sugar.
So,according to researchers at Purdue University,artificial sweeteners and diet sodas fulfill your body sensory craving for sweets,and as advertised,they don't deliver the calories.

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重点单词   查看全部解释    
craving ['kreiviŋ]

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n. 渴望,热望 动词crave的现在分词

 
flavor ['fleivə]

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n. 滋味,香料,风格
vt. 加味于

 
popular ['pɔpjulə]

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adj. 流行的,大众的,通俗的,受欢迎的

联想记忆
X
单词popular 联想记忆:
popul人民+ar…的→流行的
 
artificial [.ɑ:ti'fiʃəl]

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adj. 人造的,虚伪的,武断的

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单词artificial 联想记忆:
art艺术家,ficial读:踢飞手。艺术家踢飞手。艺术家不光胡子是假的。有一次,我亲眼看见一个舞蹈艺术家表演的时候,没小心,把自己的手给踢飞了,开始表演棒操!不知道艺术家们还有那里是人造的,假的。
 
disinclined [.disin'klaind]

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adj. 不愿的,不想的 动词disincline的过去

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X
单词disinclined 联想记忆:
inclined(adj 倾斜的;愿意的
 
calorie ['kæləri]

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n. 卡,卡路里(热量单位)
=calory

 


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