I always worry a little bit after I've spent an hour or more chatting with a friend on my cellphone. I, like many others, have heard the rumor that excessive mobile use can eventually cause brain cancer. I love the convenience of my phone but obviously it's not worth it if I'm going to end up with a tumor.

According to this article that debunks 7 common health myths, I may not have to be so concerned. Apparently, the results of a study conducted by the University of Leeds, the University of Nottingham, the University of Manchester and the Institute of Cancer Research in London, showed that cellphone use isn't associated with and increased risk of developing gliomas, a common and deadly form of the disease.

Other myths that you can learn a bit more about in the piece include the truth about the 'freshman 15', whether soy prevents heart disease, if taking the pill causes you to put on pounds and whether you can use melatonin to cure jet lag.