Water plays an essential role in the body especially during elimination of waste products after digestion and other metabolic activities.Almost everything that you put in your body has some type of toxin in it.Fortunately, the majority of these will not make you sick if you are properly hydrated. This is because the water you drink helps the kidneys function properly. As the food, drink and even medicine that you put into your body filters through the kidneys, these organs pull and filter toxins. If your body is functioning on too little water, the kidneys can't pull out toxins properly, which will eventually make you sick.It is always advisable to drink water frequently to aid the kidneys function well.