Final answer:
Warming up is crucial before exercising, especially in cold weather or during a heat wave, to prevent injuries and help the body adjust to the environmental conditions.
Step-by-step explanation:
Warming up is important before engaging in physical activities as it helps prepare the body for exercise and reduces the risk of injury. Spending extra time warming up is particularly important during cold weather, as cold muscles are more prone to strains and sprains. Additionally, when participating in activities during a heat wave, it is essential to warm up to acclimate the body to the higher temperatures and minimize the risk of heat-related illnesses.
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