What benefits does proper hydration provide to athletes?

Proper hydration offers a range of significant benefits for athletes, primarily ensuring the prevention of heat-related illnesses. When athletes are well-hydrated, their bodies are better equipped to regulate temperature during vigorous activity. Adequate fluid intake helps to maintain blood volume, allowing for effective circulation and thermoregulation. This is particularly important in hot and humid environments, where the risk of dehydration and associated heat-related issues such as heat exhaustion or heat stroke is heightened.

Inadequate hydration can lead to an increase in body temperature and a corresponding rise in heart rate, which can negatively affect an athlete's performance and overall well-being. By ensuring that athletes remain properly hydrated, they can sustain their physical performance, avoid fatigue, and reduce the likelihood of heat-related complications, ultimately enhancing safety and performance during training and competition.

The other options reflect outcomes that are contrary to what proper hydration aims to achieve, emphasizing the importance of fluid balance in athletic performance.