If you need motivation to drink more water, this book should inspire you. According to the book...
Nearly every function of the body is monitored and pegged to the efficient flow of water through our system. Water transports hormones, chemical messengers, and nutrients to vital organs of the body. When we don't keep our bodies well hydrated, they may react with a variety of signals… some of which, we would never think related to our poor drinking habits.
Medical research has shown that regular water intake will help eliminate dyspeptic pains like gastritis, duodenitis, and heartburn. Without getting into the technical and graphic details of digestion, our bodies use many hormones, enzymes, and neurotransmitters to complete the digestion process. Without ample water intake, the pancreas is less efficient, acids in the stomach are not properly neutralized, and the functions of the intestine are inhibited. Over an extended period of time, this can lead to constipation, colitis pain, false appendicitis pain, and even hiatus hernia.
Water intake is important for weight loss, not only for proper digestion, but to prevent overeating. The sensation of thirst and hunger are generated simultaneously to indicate the brain's needs. If you're not getting plenty of water, you'll likely eat more to satisfy your body's urge for water. When you feel hungry and drink water instead, you may find you're not as hungry as you think.
Don't confuse water consumption with fluid consumption. Sodas and coffee are not an acceptable substitute. In fact, you need to consume even MORE water if you're drinking sodas and coffee. Caffeine, one of the main components of most sodas, causes increased urine production and acts as a dehydrating agent. That's why you can drink sodas all day, and never feel satisfied. The water doesn't stay in the body long enough. In addition, you may mistakenly think that you've consumed enough "water" by drinking soda. When your body cries out for thirst, you're likely to over feed it with food instead.
The body is 75% water and 25% solid matter, and your body needs to stay well hydrated to operate at it's best. Not only will your body function more efficiently, but you may even avoid many health problems. Increased water consumption has been shown to help relieve migraine headaches, high blood cholesterol, rheumatoid arthritis pain, allergies, and high blood pressure. And, since you're brain tissue is 85% water, your brain functions rely heavily on an ample water supply. Studies have shown that with prolonged dehydration, brain cells actually begin to shrink.
The book also has some interesting ideas on AIDS and the HIV virus. I wouldn't do it justice trying to summarize.