Identify one effect of dehydration on athletic performance.

Dehydration has a significant adverse effect on athletic performance, particularly in reducing endurance and increasing feelings of fatigue. When an athlete is dehydrated, their body lacks the necessary fluids to function optimally. This can lead to decreased cardiovascular efficiency, which impairs the delivery of oxygen and nutrients to muscles. As a result, athletic performance suffers because muscles tire more quickly, and athletes may experience a decline in stamina and overall energy levels.

Furthermore, dehydration can disrupt thermoregulation, making it harder for the body to maintain a stable internal temperature during prolonged exercise. This combined effect of reduced endurance and increased fatigue highlights the crucial role that proper hydration plays in maintaining overall athletic performance. It is crucial for athletes to drink adequate fluids before, during, and after exercise to sustain their performance levels and prevent fatigue.