Water is everywhere, in oceans, in glaciers, in cities and in mountains. We are also consisted of water for about 60% and it can differnitate from your age and gender, for example when a baby comes to life he is 75% from water and this figure drops to 65% when he hits his first birthday. We need water to cushion and lubricate joints , regulate temperature of body and nourish the brain and the spinal cord. the water is not only in our blood , the heart and the brain of adults are 3/4 from water which is tantamount to the amount of the moisture in banana.Lungs are similar to apple with 83% and even seemingly dry and rocky human bones are 31% water. So there is a question , if we have so much water why do we need to drink it everyday. We lose about 1 liter of water everyday by sweating and bowel movements and even from breathing. Both not drinking enough and drinking too much are dangeruous or can be called as deadly. yes if you are a teenager and you are drinking 2 litres is not deadl...