WiFi, radio waves, and cell phone radiation are completely harmless.
The term radiation originates from the Latin word radius, which refers to anything that is emitted outward. This is the entirety of its meaning.
Due to a lack of scientific education, the public has been misled to believe that radiation refers solely to ionizing radiation, which possesses enough energy (with a sufficiently small wavelength) to induce chemical reactions. These reactions can alter DNA and potentially lead to cancer.
Nevertheless, ionizing radiation represents only a minor fraction of all existing radiation. In the realm of electromagnetic radiation, visible light marks the threshold of ionizing radiation, followed by ultraviolet light, X-rays, and gamma rays. Conversely, in the opposite direction, we encounter infrared, microwaves, and radio waves.
All radio waves do not possess the energy necessary to instigate chemical reactions. They do not interact with chemicals in any way that could physically induce a chemical reaction. Quantum mechanics dictates that typical biological chemical reactions require a minimum energy input to occur, which can only be achieved by absorbing a photon of a specific wavelength or shorter (as a minimum energy is necessary). Radio wave photons have wavelengths that are too broad. In contrast, ultraviolet light has sufficient energy and a short enough wavelength to trigger biochemical reactions. This is the reason for wearing sunscreen when outdoors. It also explains why one does not don tinfoil while using a cell phone.
Consequently, the public’s fear of radio waves stems from a misunderstanding of terminology, a misunderstanding rooted in the inadequate state of scientific education in the developed world, compounded by the trauma associated with the advent of nuclear warfare. This unfounded fear partly explains why the electromagnetic spectrum is regulated by a body of experts, including health professionals.
This mistaken fear is in part why the electromagnetic spectrum is governed by an agency of experts, including health physicists, rather than regulated by the whims of a poorly-educated public that [forgivably] does not understand quantum mechanics (and believes all sorts of nonsense).
There is a singular method by which radio waves can be detrimental to human beings: they possess the ability to elevate the temperature of body tissues. Rather than inducing chemical reactions, they cause the molecules within the human body to vibrate, and this vibration is perceived as heat. Consequently, individuals engaged in the maintenance of cell phone towers must exercise caution to prevent overheating.
Nevertheless, the power emitted by domestic radio systems (including Wi-Fi and cell phones) is exceedingly minimal, significantly less than the energy expended by fingers while typing this message. One particular home radio system does generate enough power to heat biological matter: your household microwave. It accomplishes this by causing the water molecules within your food to vibrate, thereby warming the food. It does not instigate chemical reactions, except for those that arise as a result of the heat itself.
Source:
https://www.healthline.com/health/emf
https://www.news-medical.net/health/Does-WiFi-Affect-the-Brain.aspx
