How does dehydration affect workout performance?

Dehydration significantly impacts workout performance, particularly in terms of endurance, strength, and cognitive function. When the body experiences a loss of fluid, it affects the cardiovascular system's efficiency, making it harder to deliver oxygen and nutrients to muscles. This can lead to a decrease in endurance, as the body struggles to maintain its aerobic capacity. Additionally, strength may be compromised since muscles function optimally when adequately hydrated; dehydration can lead to decreased muscle contractility and an increased perception of effort during exercise.

Cognitive function is also influenced by hydration levels. Dehydration can affect concentration, coordination, and reaction times, which are crucial for maintaining performance in various sports and workouts. These changes can ultimately result in reduced overall performance and increased risk of injury.

The other options do not accurately reflect the physiological effects of dehydration. While some may suggest no significant impact or enhancements to performance, the scientific consensus and evidence demonstrate that dehydration detrimentally affects multiple facets of physical and cognitive performance.