Water is a fundamental part of our lives.
It is easy to forget how completely we depend on it. Since such a large percentage of our bodies is water, water must obviously figure heavily in how our bodies function. We need lots of fresh water to stay healthy. Aside from aiding in digestion and absorption of food, water regulates body temperature, carries nutrients and oxygen to cells, and removes toxins and other wastes. In his book, Your Body's Many Cries for Water , Dr. Fereydoon Batmanghelidj noted that chronic dehydration may cause certain problems for the body, including hypertension, asthma, allergies, and migraine headaches.