(According an article at Bodybydesign.com )
A normal adult is about 70% water. The brain is about 85% water ( brain function depends on having abundant access to water) and our blood over 90% water. Water is critical within our cells and between them. We can go without food for almost two months, but without water only a few days.
Under normal conditions, an adult body loses 8 to 12 cups of water a day. This increases when we are ill, exercise heavily or are in hot climates. We lose a significant amount of water every day through sweating, urination, bowel movements and even breathing. This water must be replaced in order for our body to keep functioning properly. If you become dehydrated, your body rations and recycles water for its most critical needs and all water losing functions are reduced. Toxic wastes are dumped into body tissue, fat, joints and muscles instead of being eliminated.
Water removes waste materials from our body. Without enough water, these wastes would build up within our tissue.
Water for our lungs, which must be moist to take in oxygen and excrete carbon dioxide. It’s possible to lose a pint of liquid each day just exhaling.
Water for vital chemical reactions in our digestion and metabolism.
Water to carry nutrients and oxygen to the cells through the blood.
Water to lubricate our joints.
Water for the body to produce necessary hormones.
Water to help regulate our body temperature.
Water to help our muscles work efficiently.
Water for the body to absorb the essential substances in the food we eat.
Water gives the brain the electrical energy for all brain functions, including thought and memory processes.
(According to Dr. Corinne Allen, founder of the Advanced Learning and Development Institute, brain cells need two times more energy than other cells in the body. Water provides this energy more effectively than any other substance.)
When your brain is functioning on a full reserve of water, you will be able to think faster, be more focused, and experience greater clarity and creativity. Daily hydration will not only help with better thinking, it can help prevent attention deficit disorder in children and adults. (as stated in an article by Merlin Hearn)
And according to the Mayo Clinic, the average adult loses more than 80 ounces of water every day through sweating, breathing, and eliminating wastes.
Drink Up! .......It's a good thing(as Martha Steward might say)