Letters to the Editor 19224 Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Science News February 19, 2003 at 5:40 pm In reference to the hands-free headsets mentioned in your article, it has been shown that on the wire to a cell phone, a standing wave can exist that can penetrate deep into the brain. Peter L. NelsonAvoca Beach, Australia Share this:EmailFacebookTwitterPinterestPocketRedditPrint