Which of the following statements is true about hydration and exercise?

Regular hydration is essential for maintaining optimal physical performance during exercise. Adequate fluid intake before, during, and after activity helps to regulate body temperature, maintain muscle function, and prevent dehydration, which can hinder performance and lead to fatigue, heat stress, and more severe health issues.

Hydration supports cardiovascular function by ensuring there is enough blood volume to deliver oxygen to working muscles and remove waste products. When the body is well-hydrated, it can sustain endurance, strength, and recovery, ultimately enhancing overall exercise performance. Furthermore, hydration not only aids physical performance but also cognitive function, which can be critical during physical activities that require focus and quick decision-making.

Fluid needs can change depending on various factors such as temperature, the intensity of exercise, and individual variability, which makes understanding proper hydration particularly important for athletes and those engaging in regular exercise.