Dehydration can have a detrimental effect on exercise performance by impairing physical and cognitive function. When fluid levels are insufficient, the body experiences reduced endurance, increased fatigue, and compromised thermoregulation. This results in decreased strength, coordination, and reaction times, ultimately hindering overall performance. Additionally, dehydration can lead to muscle cramps and increased risk of heat-related illnesses. To maintain optimal performance, it is crucial for athletes and active individuals to stay adequately hydrated before, during, and after exercise. Proper hydration strategies can significantly enhance performance, endurance, and recovery.