How does regular exercise help make us more alert and energetic? A. It gets our hearts beating faster and gives us a rush of energy. B. Exercise increases our endurance and therefore we feel less tired.

How does regular exercise help make us more alert and energetic? A. It gets our hearts beating faster and gives us a rush of energy. B. Exercise increases our endurance and therefore we feel less tired. C. During exercise the brain releases endorphins, the chemicals that help improve our mood. D. We breathe in more oxygen while exercising, which helps us feel more awake. Reset Next

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