For optimal hydration, athletes should focus on what during physical activities?

For optimal hydration during physical activities, athletes should prioritize drinking water and electrolytes. This approach is essential because physical exertion leads to significant fluid loss through sweat, which can result in dehydration if not properly managed. Water is fundamental for maintaining hydration levels, while electrolytes—such as sodium, potassium, and magnesium—help regulate fluid balance, muscle function, and overall physiological processes.

Incorporating electrolytes is particularly important during extended or intense physical activities, where the body loses not only water but also these crucial minerals. By replenishing both fluids and electrolytes, athletes can maintain their performance, prevent cramping, support metabolic functions, and reduce the risk of heat-related illnesses.

Other options, such as consuming high sugar drinks, limiting fluid intake, or only consuming solid food, do not effectively support the hydration needs of athletes. High sugar drinks can lead to gastrointestinal distress and delay hydration, limiting fluid intake can exacerbate dehydration risks, and relying solely on solid food does not provide the necessary fluids or electrolytes needed during physical exertion.