The internal environment functions as a complex hydrodynamic system, where water acts as a universal solvent and a transport base for nutrients. Daily moisture losses occur continuously: through breathing, thermoregulation, and natural excretory processes.
The main misconception is that any liquid can be equated to water. Sugary drinks, coffee, and strong tea do not replenish the water balance; on the contrary, they stimulate fluid loss, forcing internal systems to spend their own reserves on neutralizing and eliminating them. True hydration begins only when water possesses properties that allow it to freely penetrate the cell membrane.
