What is one effect of dehydration on physical performance?

Dehydration has a significant impact on physical performance, particularly in relation to endurance and fatigue. When the body is dehydrated, it lacks the necessary fluids to maintain optimal physiological functions during exercise. This leads to a decrease in blood volume, which impairs the delivery of oxygen and nutrients to muscles, ultimately reducing performance capacity.

As dehydration progresses, the body struggles to regulate temperature due to insufficient sweat production. This can result in overheating and increased heart rate, both of which contribute to premature fatigue. Consequently, the individual may experience decreased endurance, making it more challenging to sustain physical activity over prolonged periods. While hydration is crucial for overall physical performance, dehydration can severely hinder an athlete's ability to perform at their best.