Why is it important for lifeguards to recognize signs of dehydration or heat exhaustion?

Recognizing signs of dehydration or heat exhaustion is crucial for lifeguards because these conditions can significantly impair their ability to perform essential duties. Lifeguards need to maintain optimal physical and mental functions to ensure the safety of swimmers. Dehydration can lead to fatigue, dizziness, confusion, and even more severe health issues, which can compromise decision-making skills and reaction times. Similarly, heat exhaustion can reduce coordination, strength, and cognitive capacities, making it difficult for a lifeguard to respond effectively to emergencies or monitor the swimming area thoroughly. By being attuned to these signs, lifeguards can take proactive measures to address their health needs, ensuring they are fit to keep swimmers safe.