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What happens inside your body when you exercise?
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Regular physical activity can lower your
risk of heart and circulatory disease by
35%.
When you are active, the heat produced
by your muscles increases your body
temperature, making you feel warmer.
Your heart starts to beat faster,
pumping more blood to the muscles you
are using. Your heart is also a muscle.
If you are active regularly, it gets
bigger and stronger. Your muscles are
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