The US National Toxicology Program (NTP) has made extensive studies on how radiofrequency radiation (RFR), along with associated modulations, influences rodent toxicology and carcinogenesis. The subject of the study, male “Harlan Sprague Dawley” rats, showed two types of tumors in the same species: One of those tumors is a malignant glioma in the brain and the other schwannomas of the heart. The study of the findings was later reviewed by expert peer reviewers selected by the NTP and National Institutes of Health (NIH) to validate the results.

The researchers studied effects of two types of RFR that we can find in our daily lives, CDMA (Code Division Multiple Access) and GSM (Global Systems for Mobile Communications). Rats were exposed to the RFR starting in utero and continuously during their whole life. The rationale of the study is, that while ionizing radiation is well-accepted carcinogen, non-ionizing radiation could also cause tumors. Considering the broad usage of wireless communication devices in the modern world this could have broad implications for public health.

The NTP chronic toxicity/carcinogenic studies usually expose the rats as test articles for 2 years and in this case it consisted out of three parts. Firstly they conducted a series of tests to see which frequencies raise body temperature, than conducted a 28-day toxicology study on rodents exposed to different low-level field strength eventually leading to the toxicology and carcinogenesis study itself. Moreover, researchers showed that “Harlan Sprague Dawley” rats have no prior genetic predisposition toward tumors of the kind that was in study.  

The result of study showed that RFR had no impact on litter size or sex distribution of pups but the weight of the “pups” were lower for those exposed to GSM and CDMA. During the lactation phase, their weight was 8% (GSM) to 15% (CDMA) lower and the difference tended to lessen as lactation progressed. The survival rate of males was higher for both exposed groups as opposed to the control group. The main observation was that rats exposed to RFR fields of 6W/kg strength showed a 3% increase of malignant gliomas in the brain and a 6.6% increase of schwannomas in the heart. Not only that schwannomas increased in numbers, but the “schwann” cells were also present in the peripheral system and distributed throughout their whole body.

More studies are to come since few were connected to the study in question, but we can already see that exposure to the RFR has impact on the public health. If the 5G network goes global, the impact on our health and the health of our children will surely be affected to a degree.