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B1 中级 英语 5:03 Educational

How sugar affects the brain - Nicole Avena

TED-Ed · 18,747,247 次观看 · 添加于 3 周前

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B1

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字幕 (101 片段)

00:06

Picture warm, gooey cookies,

00:09

crunchy candies, velvety cakes,

00:12

waffle cones piled high with ice cream.

00:14

Is your mouth watering?

00:16

Are you craving dessert?

00:17

Why?

00:18

What happens in the brain that makes sugary foods so hard to resist?

00:23

Sugar is a general term used to describe a class of molecules

00:27

called carbohydrates,

00:28

and it's found in a wide variety of food and drink.

00:31

Just check the labels on sweet products you buy.

00:34

Glucose, fructose, sucrose,

00:36

maltose, lactose, dextrose, and starch

00:39

are all forms of sugar.

00:41

So are high-fructose corn syrup,

00:43

fruit juice, raw sugar, and honey.

00:46

And sugar isn't just in candies and desserts,

00:49

it's also added to tomato sauce,

00:51

yogurt, dried fruit, flavored waters, or granola bars.

00:55

Since sugar is everywhere, it's important to understand

00:58

how it affects the brain.

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