Tuesday, February 22, 2011
Cell Phones and Brain Cancer-Is There A Link?
It is a question that has been asked many times before, Can using a cell phone lead to brain cancer? It is an important question because mobile phone use has increased from 7.6 million in 1991 to 223,000,000 today. As of this point there have not been any significant studies to show a direct connection. But the National Institutes of Health decided to look at something else. They look at the activity of the brain in people who use cell phones. 47 healthy people had their brain activity measured by PET scans. Their brains were measured when the cell phone was on and actively transmitting electromagnetic rays and when the cell phone was off. What they found is that activity in the brain closes to the antenna was almost 7% higher when compared to the rest of the brain. What it shows us is that the brain is sensitive to electromagnetic waves from cell phones. It doesn't tell us anything else. Already some are suggesting the advantages of speakerphones and minimizing the amount of time the cell phone is held to the ear. Once again this is not a measure of cancer but it does show that our brains are in some way affected by electromagnetic waves from cell phones.