Water plays a crucial role in metabolic processes, acting as a solvent for biochemical reactions and helping regulate body temperature. It aids in the digestion and absorption of nutrients, transporting them through the bloodstream to cells. Water is also essential for maintaining hydration, which is vital for optimal cellular function and energy production. Additionally, it supports the elimination of waste products through urine and sweat. Adequate water intake is crucial for overall health, as even mild dehydration can impair physical performance and cognitive function.