Robert F. Kennedy Jr. on health: what the evidence says · JRE #1999

What the evidence says 01 / RECORD

Wi-Fi and cell phones both emit radiofrequency (RF) radiation, a form of non-ionizing radiation with too little energy to damage DNA directly, unlike higher-energy ionizing radiation such as x-rays. The National Cancer Institute (part of NIH) reports that four large epidemiologic studies of cell phone use and cancer, including the Interphone case-control study, the Danish cohort, the Million Women Study, and the COSMOS cohort, found mixed but overall no consistent association between RF exposure and glioma, meningioma, or acoustic neuroma, including among long-term or heavy users. Some individual analyses reported small statistically significant increases in specific tumor types, but researchers considered these findings inconclusive due to recall bias and other methodological limitations. Animal studies conducted by the U.S. National Toxicology Program, along with a similar study from the Ramazzini Institute, found a small number of heart Schwann cell tumors in male rats exposed to high RF doses, but an independent panel (ICNIRP) concluded methodological weaknesses in both studies prevent drawing conclusions about whether RF exposure can cause cancer. The NCI's fact sheet addresses cell phone RF exposure specifically and does not separately assess Wi-Fi; Wi-Fi routers and devices transmit at substantially lower power than cell phones, so evidence directly linking Wi-Fi exposure to cancer risk is even more limited than the inconclusive cell phone research. As of the NCI's most recent review, current evidence does not establish that RF radiation from cell phones causes cancer in humans, undermining the stronger and more specific claim that Wi-Fi radiation causes cancer.