The roll out of 5G should be halted – the precautionary principle is justified given current science and epidemiological data. Prof Frank J W (physician-epidemiologist, University of Edinburgh) Electromagnetic fields, 5G and health: what about the precautionary principle? Oct 2020 This essay identifies four relevant sources of scientific uncertainty and concern, including the almost total lack (as yet) of high- qualityepidemiological studies of adverse human healtheffects from 5G EMF exposure, but epidemiological evidence of such effects from past generations of RF-EMF is becoming better understood. 
Many biological systems are affected by RFR, including 5G; this is being ignored by flawed processes of assessment. Prof Tom Butler – Submission on 5G for the Action Against 5G Judicial Review Case 2020This explores the existing research on the health risks posed by 5G. It demonstrates that the overwhelming body of scientific evidence on RFR appears to have been ignored by relevant government departments and agencies in arriving at decisions about the introduction of 5G. This is due to over-reliance on the International Commission on Non-Ionizing Radiation Protection (ICNIRP), an NGO whose members have traditionally had close ties to industry.  
Potential toxicity of 5G in the real world is not adequately considered by the regulatory bodies and governments. Kostoff et alAdverse health effects of 5G mobile networking technology under real-life conditionsToxicology Letters, Volume 323, 2020, Pages 35-40,Identifies adverse effects of wireless radiation reported in the premier biomedical literature. It emphasizes that most of the lab experiments conducted to date are not designed to identify the more severe adverse effects reflective of the real-life operating environment in which wireless radiation systems operate. Many experiments do not include pulsing and modulation of the carrier signal and the vast majority do not account for synergistic adverse effects of other toxic stimuli (such as chemical and biological) acting in concert with the wireless radiation. This article also presents evidence that the newly emerging 5G mobile networking technology will affect not only the skin and eyes, as commonly believed, but will have adverse effects as well.
The scale of increase of exposure to RFR radiation with 5G, via a new millimetre wave beam formed technology, potentially has serious health implications. Cindy L Russell5G wireless telecommunications expansion:Public health and environmental implications. Environmental Research. April 2018Environmental Research. 2018.  Di Ciaula,Towards 5G communication systems: Are there health implications?  Int J Hyg Environ Health. 2018 After considering the science and safety guidelines of 2G, 3G, 4G. It questions whether adding high frequency 5G radiation to the complex mix of lower frequencies is advisable. It addresses the synergistic toxic effects. Precaution is strongly indicated.  Despite the ubiquity of RF radiation and the rush to roll out 5G, health effects are still under investigation, especially in relation to 5G, which has been little investigated. It’s clear that RF-EMF causes health effects.. Preliminary observations show that 5G millimetre waves increase skin temperature, alter gene expression, promote cellular proliferation and synthesis of proteins linked with oxidative stress, inflammatory and metabolic processes, could damage the eyes and affect neuro-muscular dynamics. Further studies are needed.