Hydration levels are crucial for optimal exercise performance. Adequate hydration maintains cardiovascular function, regulates body temperature, and supports overall metabolic processes. Dehydration can lead to reduced endurance, increased fatigue, and impaired cognitive function, all of which can hinder athletic performance. Even mild dehydration can negatively impact strength and power output. Staying hydrated helps maintain energy levels and improves recovery after physical activity, making it an essential aspect of any fitness routine.