Role of Water in Human Body Livpure The Vital Role of Water in Our Health Water is essential to life, making up around 60% of our body, depending on our age. That's why staying hydrated is crucial to Scientists Explain What Happens to Your Body When You Drink Water Every Day My memoriesWater serves as Lubricant Posted on 8th May 2015 Water serves as a lubricant Water serves as a lubricant in digestion and almost all other body processes. The water in our Water is not just a drink its a basic requirement for life., Our body is made up of 6070% water, and every major organ depends on it to function properly., Brain needs water for focus &