June 9, 2011 Leave a comment
The World Health Organization has now come out labeling mobile phones as a carcinogenic hazard. In a report made public Tuesday, May 31, a team of scientists reported that the cumulative data supports this new designation of “hazard.”
Many may remember that the University of Pittsburgh released a memo requesting that employees guard themselves against excessive cell phone usage. Much of that work reflected the efforts of Devra Lee Davis, PhD, who has worked tirelessly to promote this area of investigation. Indeed, Dr. Davis, who was at the University of Pittsburgh, spearheaded that effort as well.
The science of cancer causation associated with cell phones and related electromagnetic fields is still maturing. One fascinating presentation by investigators at Harvard and New Mexico suggested piezoelectric rectification as the mechanism. When collagen and other biological tissues respond to these resonant frequencies, heat is released. Yet, the piezoelectric effect is a non-thermal energy effect that might better explain the carcinogenesis.
Examinations of cell phone electromagnetic fields suggest the penetration of the signal several centimeters into the brain. While this is a real concern in adults, it becomes a frightening concern in young children, one of the largest growth segments in cell phone sales.
It may not be surprising to realize that sources of electromagnetic radiation can have serious consequences on our health. Life as we know it is dependent upon chemical energy. Influencing the charge and polarity of cells may adversely affect normal metabolism and signal transduction. The take-home message is that cell phones do pose a risk, that the risk can be minimized by limiting exposure and that those strategies that put distance between the cell phone and the user’s ear are the safest. Speakerphones make more and more sense and the use of small earpieces would also be supported, for the field they generate is demonstrably smaller. Finally, it would seem advisable to limit children’s use of cell phones to a minimum.