How much you drink water.

Water is essential for life, and it is true that if you don't have food then you could survive for months but if you don't have water then you will die after three days. What doctor's has to say is that each person should drink at least 1 liter water daily, and what training experts say is that drink water so that your urine is not yellow but pure like clear water. But how much water do a common man drinks, may be a half a liter or less, and suffers from several problems. Do you drink as what doctor's prescribe or you drink less or you drink it more than what is described. Well drinking lots of water has lots of health benefits too, so keep drinking until l its free.