1. DNA
Several studies show adverse effects on living organisms induced by different types of human-made Electromagnetic Fields (EMFs). A study on insects (Chironomidae) focused on the DNA effects of giant chromosomes of the salivary glands of the animals with different frequencies (64.1–69.1, 67.2, 68.2 GHz). All frequencies, using power densities <6 mW/cm2, reduced the size of a particular area of the chromosome. This, in turn, led to the expression of specific secretory proteins of the salivary gland. Other studies suggest a variety of effects, the most important being DNA damage, which is linked to cancer, aging, neurodegenerative diseases, reproductive declines, genome instability, etc.
2. Skin
The biggest concern is how 5G will affect human skin. Our body has between two million to four million sweat ducts, which can act as an array of helical antennas when they are exposed to wavelengths, i.e., humans become more conductive. A recent New York study that experimented with 60GHz waves stated that the penetration depth analyses show that over 90% of the transmitted power is absorbed in the epidermis and dermis layers. This can lead to physical pain to the skin, skin diseases, and cancer.
3. Eyes
A 1994 study found low-level millimeter microwave radiation produced lens opacity in rats, which is linked to cataracts production. The effects of MMW were also tested (60 GHz, 475 mW/cm2, 1.898 mW/cm2, 6, 30 min) on rabbit eyes, describing acute thermal injuries of various types. The higher temperature just below the eye surface could induce damage.
An experiment by the Medical Research Institute of Kanazawa Medical University discovered that 60GHz millimeter-wave antennas could cause thermal injuries of varying levels. The thermal effects caused by millimeter waves can penetrate below the surface of the eye. A 2003 Chinese study, meanwhile, has also found damage to the lens epithelial cells of rabbits after 8 hours of microwave radiation exposure.
4. Heart
A study conducted in Russia found that frequencies in the 53-78GHz range that 5G proposes to use impacted the heart rate variability, indicating stress in rats. Another Russian study on frogs, whose skin was exposed to MMWs, found noticeable heart rate changes (arrhythmias).
5. Immunity
In 2002, Russian researchers examined the effects of 42HGz microwave radiation exposure on the blood of healthy mice. The study concluded that the exposure of healthy mice to low-intensity EHF EMR has a profound effect on the indices of nonspecific immunity. Another study, addressing the effects of MMW on the immune system of mice or rats, found an activation of the immune system at both the cellular and molecular levels.
A 2016 Armenian study suggested MMW’s effects are mainly on water, cell plasma membrane, and genome. They found that the contact between MMW and bacteria altered their susceptibility to various biologically active chemicals like antibiotics. Notably, the combination of MMW and antibiotics showed that it could lead to antibiotic resistance in bacteria.
6. Cell growth
An Armenian study in 2016 observed MMWs at low intensity, mirroring the future environment produced by 5G. It conducted on E-coli and other bacteria and stated that the waves depressed their growth, changing properties, and activity of the cells. The fear is that it will do the same for human cells.
Let’s sum up. Though there are plenty of studies on the potential impacts of 5G on human health, they are not clear-cut. Though there is no known mechanism for non-ionizing radiation to have a biological effect, it does not mean it is safe or that no effect exists. Indeed, researchers continue to conduct studies. But for now, everything we know about 5G networks tells us that there’s no reason to be alarmed.