Researches have been carried out on different groups of people to study the link between cell phone use and cancer risk. No solid relationship was established. The researchers however had limitations. At the moment, there is inadequate data to link health problems like cancer to the use of cell phones. However, a number of studies are underway and a new discovery may be made. While a lot remains unknown about the effect of cell phones, experts agree that it is best to limit screen time off work to about 2 hours a day. It is also recommended that you minimise the amount of energy from radiofrequency waves that you are exposed to.