No wastes or toxins can leave the body without first being combined with oxygen. The more toxins the less oxygen, the less oxygen the more acidity. Dr. Otto Warburg and many others have implied that the more pollution thrown into bodies the less oxygen will be available to the cells. “The Secret of Life is both to feed and nourish the cells and let them flush their waste and toxins,” according to Dr. Alexis Carrell, Nobel Prize recipient in 1912. The cells need plenty of oxygen and water to do that. The role of heavy metals is very important in the rise of cancer rates.,
Dr. Sang Whang, author of the Reverse Aging, says the aging process is basically the accumulation of acidic wastes built up within the body. He says, “The nutrients that we deliver to our cells burn with oxygen and become acidic wastes after giving energy to our body. The body tries its best to get rid of these acidic wastes through urine and perspiration.” Dehydration retards the process of elimination. Cells are more vulnerable to chemical poisoning and acid buildup when in a dehydrated state.
Oxygen and water are the two most prime elements for life. No one has to tell us to breathe oxygen because the autonomic nervous system makes us do it when CO2 builds up in the blood. However keeping hydrated is not so simple because its not just the amount of water we consume but the quality of the water that matters.
Cells under low oxygen concentrations are stressed; with increased free radicals further augmenting cell death by inducing free radical chain reactions and consequent more oxygen deprivation. ROS overproduction is a feature of cancer cells and plays several roles during the natural history of malignant tumors.
 Toxic metals and breast cancer; http://www.townsendletter.com/AugSept2007/toxicmetalbreastcancer0807.htm