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B1 中级 英语 2:33 Educational

What happens inside your body when you exercise?

British Heart Foundation · 1,998,126 次观看 · 添加于 3 个月前

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00:08

Regular physical activity can lower your

00:10

risk of heart and circulatory disease by

00:13

35%.

00:19

When you are active, the heat produced

00:21

by your muscles increases your body

00:23

temperature, making you feel warmer.

00:27

Your heart starts to beat faster,

00:29

pumping more blood to the muscles you

00:31

are using. Your heart is also a muscle.

00:34

If you are active regularly, it gets

00:36

bigger and stronger. Your muscles are

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