What does dehydration indicate?

Dehydration occurs when the amount of fluid lost from the body exceeds the amount of fluid taken in. This can result from various factors, including excessive sweating, insufficient fluid consumption, or certain illnesses that lead to fluid loss. When the body's fluid levels decrease, it can lead to a range of physiological issues, such as decreased blood volume, increased heart rate, and impaired thermoregulation.

Understanding fluid balance is crucial, especially in high-stress environments like firefighting, where maintaining hydration is essential for optimal performance and health. Recognizing the signs of dehydration and its implications reinforces the importance of adequate fluid intake to prevent heat-related illnesses and ensure effective function during emergency operations.