There are many controversy about the relation of  mobile phone and cancer disease.

So here's a bad news for you a Mobile Phone geek, that love to use your mobile phone 20 hours a day.  An Israeli scientist, Dr. Siegal Sadetzki, has found a link between cell phone usage and the development of tumors , Dr. Sadetzki, a physician, epidemiologist and lecturer at Tel Aviv University, published the results of a study recently in the American Journal of Epidemiology, in which she and her colleagues found that heavy cell phone users were subject to a higher risk of benign and malignant tumors of the salivary gland.

Those who used a cell phone heavily on the side of the head where the tumor developed were found to have an increased risk of about 50% for developing a tumor of the main salivary gland (parotid), compared to those who did not use cell phones.The fact that the study was done on an Israeli population is significant. Says Sadetzki, “Unlike people in other countries, Israelis were quick to adopt cell phone technology and have continued to be exceptionally heavy users. Therefore, the amount of exposure to radiofrequency radiation found in this study has been higher than in previous cell phone studies.

“This unique population has given us an indication that cell phone use is associated with cancer,” adds Sadetzki, whose study investigated nearly 500 people who had been diagnosed with benign and malignant tumors of the salivary gland.

The study’s subjects were asked to detail their cell phone use patterns in terms of how frequently they used one, and the average length of calls. They were compared to a sample of about 1,300 healthy control subjects.

The study also found an increased risk of cancer for heavy users who lived in rural areas. Due to fewer antennas, cell phones in rural areas need to emit more radiation to communicate effectively. The only good news is the although the risk is proving increase,  still it's a very hard to really prove that the Mobile Phone can cause a cancers, due to the long latency period involved in cancer development, explains Sadetzki.

So what should we do the decrease the risk:

• Use a hands-free device al the times.
• Don't talking to long using your mobile phone, and if you do hold phone away from one's body.
• Less frequent calls.
• If you do have a children, you have to consider what age your children start using them, make sure they use hands-free and limit the numer of call and amount of time.