Hydration plays a crucial role in workout intensity and duration, as it maintains body temperature, supports muscle function, and ensures optimal blood flow. Dehydration can lead to reduced endurance, increased fatigue, and impaired performance. Proper hydration helps prevent muscle cramps and allows individuals to sustain high levels of activity over more extended periods. Drinking water before, during, and after exercise is essential to replenish lost fluids and maintain energy levels, ultimately enhancing workout outcomes and promoting overall health.