What is an important aspect of managing exercise in extreme temperatures?

Managing exercise in extreme temperatures requires careful attention to how the body responds to various environmental conditions, particularly regarding heat and cold stress. Modifying exercise intensity appropriately is crucial because it allows the individual to maintain safe and effective workouts that consider the body's physiological responses to temperature extremes.

When exercising in hot weather, the body works harder to regulate its temperature, often leading to increased heart rate and potential dehydration. Reducing the intensity or duration of workouts can mitigate the risk of heat-related illnesses such as heat cramps, heat exhaustion, or heat stroke. Similarly, in cold conditions, excessive intensity can lead to a quick loss of body heat and increased risk of hypothermia or frostbite. Adjusting the intensity allows for a more manageable workout that minimizes those risks while still promoting fitness.

The other options do not effectively address the essential need to balance safety and exercise effectiveness in extreme weather. Wearing layers regardless of temperature could lead to overheating or excessive cold, ignoring hydration needs can quickly lead to serious health issues, and avoiding outdoor activities entirely limits physical fitness opportunities when safe exercise can still take place with proper adjustments.