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B1 中级 英语 4:52 Educational

What would happen if you didn’t drink water? - Mia Nacamulli

TED-Ed · 23,284,491 次观看 · 添加于 3 周前

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B1

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5/10

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字幕 (93 片段)

00:06

Water is virtually everywhere,

00:08

from soil moisture and ice caps,

00:11

to the cells inside our own bodies.

00:14

Depending on factors like location,

00:16

fat index,

00:17

age,

00:18

and sex,

00:19

the average human is between 55-60% water.

00:23

At birth, human babies are even wetter.

00:27

Being 75% water, they are swimmingly similar to fish.

00:32

But their water composition drops to 65% by their first birthday.

00:37

So what role does water play in our bodies,

00:40

and how much do we actually need to drink to stay healthy?

00:44

The H20 in our bodies works to cushion and lubricate joints,

00:48

regulate temperature,

00:49

and to nourish the brain and spinal cord.

00:53

Water isn't only in our blood.

00:56

An adult's brain and heart are almost three quarters water.

01:00

That's roughly equivalent to the amount of moisture in a banana.

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