Radiofrequency radiation is relatively low-energy, and it can't break chemical bonds. Like the nearby microwave frequencies, it can heat tissues. But we're not aware of any mechanisms beyond heating by which radiation at these wavelengths can damage human tissue. And there's no evidence at the population level indicating that radiation from these sources poses any sort of risk.

5G is no different. It does transmit on different frequencies in some situations. But these frequencies are generally blocked by things like walls, and they are also low enough energy that they won't cause molecules to break apart. Also, no, 5G does not make you more vulnerable to COVID-19 by weakening your immune system, nor do 5G signals give rise to the virus itself. //

By contrast, the adverse effects of ionizing radiation are well-known and well-documented. Ions are just electrically charged atoms. Cations have more protons than electrons and hence have a positive charge, while anions ("negative ions") have a negative charge because there are more electrons than protons. High-energy rays can knock electrons off of atoms, and the resulting free electrons then collide with other atoms to create even more ions. This can cause unnatural chemical reactions in living cells, breaking apart DNA chains so that the cell either dies or mutates to become cancerous.

That's why many scientists who worked with X-rays in the early days after their discovery lost their hair and developed cancerous tumors. Marie Curie was exposed to radioactive elements through her experiments, and she liked to carry around vials of radium because the glowing tubes looked like "fairy lights" at night. She eventually died of aplastic anemia linked to that radiation.

The ionizing radiation emitted by the quantum pendant and similar products is significantly lower, as the ANVS acknowledges, but prolonged continuous wear could nonetheless be harmful. Back in 2016, Amal Graafstra, who founded the biohacking supply company Dangerous Things, tested a "negative ion" silicon wristband by placing it against a Geiger counter. He discovered the band was emitting more than 2 microsieverts (or 0.000002 sieverts) of radiation every hour.

That's well below the 1-sievert threshold needed to cause radiation sickness, but if one wore the band for 24 hours, it's roughly equivalent to getting five dental X-rays in a single day. Wear it 24 hours a day for a year—as someone who fears 5G exposure might do—and you'll be exposed to 21.9 millisieverts, which is half the maximum permitted exposure for radiation workers in the US. Small wonder that the US Nuclear Regulatory Commission has warned of the potential dangers associated with wearing such products over a long period of time.