Hydration plays a crucial role in improving stamina during workouts, as even mild dehydration can lead to significant decreases in performance. Proper fluid levels help regulate body temperature and maintain energy levels, which are vital for endurance activities. Additionally, staying hydrated can aid in the transportation of nutrients to muscles, enhancing recovery and performance. Consuming fluids before, during, and after exercise ensures optimal hydration levels, contributing to better overall stamina and a more effective workout experience.