Final answer:
Warming up before a workout helps prevent injuries and prepares the body for physical activity, while cooling down allows the body to gradually return to a resting state.
Explanation:
Warming up before a workout is crucial to prevent injuries and prepare the body for physical activity. It allows for a gradual increase in heart rate and breathing, priming the muscles for exercise. Cooling down afterward helps the body gradually return to a resting state, reducing the risk of dizziness or muscle soreness.
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