How does dehydration affect athletic performance?

Dehydration significantly impacts athletic performance, particularly by impairing thermoregulation and decreasing endurance. During physical activities, especially in warm environments, maintaining optimal hydration levels is crucial for regulating body temperature. When dehydration occurs, the body's ability to cool itself through sweating becomes compromised. This can lead to an increase in core body temperature, resulting in fatigue, reduced performance, and a higher risk of heat-related illnesses.

Additionally, dehydration affects cardiovascular function and blood flow, leading to decreased oxygen delivery to muscles. As a result, endurance activities become more challenging, and performance levels suffer. It’s important for athletes to recognize the importance of proper hydration before, during, and after exercise to maintain both performance and safety.