Dehydration can severely impact exercise performance by reducing endurance and increasing the risk of heat-related illnesses. Even mild dehydration can lead to fatigue, decreased coordination, and impaired cognitive function, which can detract from motivation and focus during workouts. It can also hinder muscle recovery and performance, as proper hydration is essential for nutrient transport and metabolic processes. Athletes should prioritize hydration before, during, and after exercise to maintain optimal performance levels and reduce the risk of injuries. Staying hydrated supports overall health and maximizes athletic potential.