What are the signs of dehydration that lifeguards should be aware of?

The signs of dehydration that lifeguards should be attentive to include thirst, fatigue, and headache. Thirst is often the body's initial signal indicating the need for hydration, and it becomes increasingly more intense with the progression of dehydration. Fatigue can occur as the body struggles to maintain energy levels due to a lack of adequate fluid, impacting physical performance and mental alertness, which is crucial for lifeguards in their duties. Headaches can also manifest due to dehydration, as insufficient fluid levels can affect the body's normal function and contribute to discomfort or pain.

Recognizing these signs is essential for lifeguards, as early intervention can help prevent more severe complications associated with dehydration, particularly in environments where individuals are exposed to heat and physical exertion. It is crucial for lifeguards to remain vigilant and proactive in managing hydration not only for themselves but for patrons as well.