Hydration is the process of providing adequate fluids to the body to maintain its essential functions. Proper hydration is crucial for overall health, as it helps regulate body temperature, keeps joints lubricated, and allows organs to function optimally. Water is the primary source of hydration, and it is important to consume enough daily to replace fluids lost through sweat, urine, and other bodily processes. Dehydration can lead to various health issues, including fatigue, headaches, and impaired cognitive function. To stay hydrated, individuals should drink water regularly and consume foods with high water content, such as fruits and vegetables. Maintaining hydration is especially important during physical activity and in hot weather.