Heavy cell phone use may raise cancer risk
New research published in the journal _Antioxidants and Redox Signaling_has found that the saliva of frequent cell phone users shows higher oxidative stress, which is considered a risk factor for cancer. Researchers looked at saliva because cell phones are placed close to the salivary glands when in use and they thought that might provide clues about the cancer risk.
For the study, researchers looked at the saliva of 20 patients who frequently talked on their cell phones – a minimum of eight hours a month. Most of the participants spoke on the phone much more, some 30 to 40 hours a month. Their saliva was compared to the control group, which was made up of deaf patients who either didn’t use a cell phone or used it only to text message or do other non-verbal things. Compared to the control group, the heavy-use group had significantly more oxidative stress in their saliva.
Researchers say while their research did not uncover a specific cause and effect, evidence is mounting to suggest that extensive cell phone use could be harmful in the long-term.