Life can't exist without water. We need water in our bodies in order to get proper hydration. Water can cure headaches,fatigue,joint pain and so much more. We can go weeks without food but only 3 days without water isn't that amazing. Our bodies are made up of 80% of water. Soft drinks and alcohol take water from our bodies. If we don't drink enough water we can get chronic cellular dehydration and daytime fatigue. We need water for proper digestion. Water can do so much for us.