According to The National Agency for Health, Food and Environmental Safety in France, children and heavy users should limit their exposure on cell phones to just 40 minutes a day. The recommendation was made by a panel of 16 experts who studied 300 scientific studies that have been released since 2009. Some of the studies have linked long term cell phone use with the development of brain cancer.
A commerce manager who spend 6 hours a day on a cell phone for 12 years as part of his job, was awarded compensation by an Italian Court for a brain tumor that the court ruled had come on as a result of his cell phone use. The French agency also blamed cell phone radiation for fertility issues, cognitive problems, and issues with sleep. Despite all of this information, The National Agency for Health, Food and Environmental Safety was forced to admit that "the agency's experts were unable to establish any causal link between the biological effects described in cell models, animals or humans, and any possible resulting health effects."