Nearly three-quarters of Earth's surface is covered with water but many do not know its role and effect on life. Water is the most vital substance on this planet. Simply put, our existence depends on it. We can survive for weeks without food, but on average only about 100 hours without water. Water is the largest single constituent of the human body and is essential for cellular homeostasis and life. The quantity and quality of the water we drink have a dramatic impact on our health.

The human body is a water machine, designed primarily to run on water and minerals. Every life-giving and healing process that happens inside the body happens with water. In just the last decade, medical science has begun to focus more on the tremendous healing ability of the body and how much that ability depends on water. The body instinctively knows how and strives to sustain youthful longevity, and in its every effort, water is the key. The human body is made up of more than 70% water. The blood is more than 85%, the brain more than 80%, muscles more than 75%, and the liver is 96% water.

Some of the "basic" functions of water in the human body are: Delivering oxygen and nutrition to the cells; removal of carbon monoxide, toxins and waste material (detoxification) which helps dissolve minerals and other nutrients to make them accessible to the body; moistening of tissue (i.e. skin, mouth, eyes nose, lungs); protection of bodily organs and tissue; prevention of constipation; joint lubrication; and body temperature regulation.