Sen. John McCain announced he had been diagnosed with glioblastoma, an aggressive and fast-growing type of brain tumor
A 2017 meta-analysis found that long-term cellphone use (minimum of 10 years) may be associated with an increased risk of glioma
The International Agency for Research on Cancer (IARC) has classified radiofrequency (RF) radiation — the type used by cellphones to send signals — as a “possible human carcinogen”