Two new government studies say if there's any cancer risk from using cellphones, it's very small.
Researchers at the National Institute of Environmental Health Sciences show one study found a link between high exposure to cellphone radiation and heart tumors in male rats. But there was no increase in cancer in female rats or any mice. And that doesn't even necessarily mean that the risk even translates to people, experts agree.
The rats and mice were exposed to radiation nine hours each day for two years, which is more than even heavy cellphone users experience.
Some significant findings:
- Male rates given high doses of cellphone radiation had a higher risk of a type of cancer called a schwannoma in the nerves surrounding the heart
- Rats exposed to cellphone signals lived longer than rats not exposed
- They were especially less prone to a type of inflammatory kidney disease