It’s a relatively age-old question: do cell phones cause brain cancer and other bad things? Well, it seems no conclusive link has been found. But some white coats did find that EEG patterns in the gray matter slow down during cell phone usage:
Although no studies have shown a correlation between cell phone use and brain damage, the International Journal of Neuroscience published a study that found a slower EEG brain wave pattern during cell phone use. This difference in brain activity was subtle - within the normal range - but may reflect a different state of awareness. In fact, they also discovered that frequent cell phone users performed better in selective attention tasks. It’s possible that talking on the phone in the midst of the bustling world’s distractions requires a level of concentration that effectively works as cognitive training of attention.
Hmmm… if mobiles require a bit more concentration, then isn’t it possible that hands-free devices may actually be useless, at least in terms of keeping a driver’s attention squarely on the road? In any case, the most reasonable advice available now is to minimize your contact with mobiles. For instance, instead of keeping the phone to you ear while it connects, it’s always possible to wait for the screen to indicate that the call has gone through before sticking your head to the ear piece.
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