True or False: The ability to remain focused in scanning decreases significantly after about 30 minutes.

Maintaining focus while scanning the water is crucial for a lifeguard's effectiveness in preventing drownings and performing rescues. Research and practical experience indicate that the ability to stay focused does diminish after continuous scanning for about 30 minutes. This decline in concentration can result from mental fatigue, decreased vigilance, and the monotony of observing a still water environment. It's vital for lifeguards to understand this concept because it highlights the importance of implementing strategies to combat fatigue, such as rotation with other lifeguards or taking breaks, to ensure safety at all times. By recognizing that focus wanes, lifeguards can adjust their work habits accordingly to maintain a high level of alertness and response readiness.