Commentary by Dr. Denis Henshaw, UK, about NIR, Electron Energy and Cancer.

April 11, 2020.  I just received this pdf from Dr. Denis Henshaw in the UK.  I thought it was so well researched and so well written that I asked permission to post it on my website.  He agreed and here it is.   The title is, Cell phone radio waves have insufficient energy to damage DNA and cause serious illness – an enduring fallacy.

Below is the conclusion from this document but I strongly urge you to read it and share it with physicists who are misleading the public based on outdated understanding of physics and a poor understanding of biology.   Also, share it with journalists who promote the physicists inaccurate view about NIR and cancer.

I am also providing a link to two articles I wrote about this issue for those interested.

One is titled, Carcinogenic effects of Non- Ionizing Radiation: A Paradigm Shift (2017) and the other is, When theory and observation collide:  Can non-ionizing radiation cause cancer? (2017).

I provide the abstracts below for both articles.

Havas M (2017) Carcinogenic effects of Non-Ionizing Radiation: A Paradigm Shift. JSM Environ Sci Ecol 5(2): 1045.


We are in the midst of a paradigm shift when it comes to our understanding of the biological effects of non-ionizing electromagnetic frequencies generated by our use of electricity, electronics and wireless technology. Ionizing radiation (IR) has enough energy to break chemical bonds and is known to cause cancer. However, because non-ionizing radiation (NIR) lacks this energy, it was assumed that these lower frequencies cannot be carcinogenic. This concept is based on a flawed assumption. NIR can and does cause cancer not by increasing the production of free radicals but by interfering with the repair mechanisms that neutralize free-radicals. While the mechanisms differ, the consequences of both NIR and IR are the same–oxidative stress resulting in cellular damage including cancer. 

Havas, M.  (2017) When theory and observation collide: Can non-ionizing radiation cause cancer?Environmental Pollution 221 (2017) 501–505.


This paper attempts to resolve the debate about whether non-ionizing radiation (NIR) can cause cancer – debate that has been ongoing for decades. The rationale, put forward mostly by physicists and accepted by many health agencies, is that, “since NIR does not have enough energy to dislodge electrons, it is unable to cause cancer.” This argument is based on a flawed assumption and uses the model of ionizing radiation (IR) to explain NIR, which is inappropriate. Evidence of free-radical damage has been repeatedly documented among humans, animals, plants and microorganisms for both extremely low frequency (ELF) electromagnetic fields (EMF) and for radio frequency (RF) radiation, neither of which is ionizing. While IR directly damages DNA, NIR interferes with the oxidative repair mechanisms resulting in oxidative stress, damage to cellular components including DNA, and damage to cellular processes leading to cancer. Furthermore, free-radical damage explains the increased cancer risks associated with mobile phone use, occupational exposure to NIR (ELF EMF and RFR), and residential exposure to power lines and RF transmitters including mobile phones, cell phone base stations, broadcast antennas, and radar installations.

Feel free to share.