What is radiation?
Electromagnetic radiation is electromagnetic energy. All types of electromagnetic radiation, from solar radiation, X-rays and radioactivity to radiation from masts and mobile phones, are part of the electromagnetic spectrum. Of the whole electromagnetic spectrum, we can only perceive light and warmth with our senses. All other types of electromagnetic radiation, can only be perceived through instruments. Life is inextricably linked with electromagnetism: without electromagnetism, life as we now know it would not be possible. Electromagnetism is one of the four basic conditions for existence acknowledged in Physics, together with gravity and the strong and weak nuclear forces (that which keeps matter together). Human beings are also made up of these forces, plus what is often referred to as 'stardust': the around hundred elementary particles from which all matter, including the stars, is constructed.
Electromagnetic radiation is in essence nothing more than energy. Einstein said that energy and matter are in fact so intertwined that they cannot be considered independent elements, but are interchangeable. You can therefore express matter in energy, as Einstein's famous formula E = MC2 shows. 'Dead' matter therefore doesn’t actually exist, because everything is made up of moving and vibrating elementary particles. That is why all matter also has its own frequency (vibrations per second), specific vibration strength (amplitude), speed (Hertz) and rhythm (phase).
However, there is a difference in what we experience. Take a human being and a chair, for instance: they both have a different shape, colour and size, a human being is alive and a chair is made of ‘dead' matter, a human being can move, a chair cannot etc. If you zoom in with a microscope 100.000x, however, there appears to be no discernible difference left: only single atoms are visible. And if you zoom in even further, down to the smallest particle, the only thing left to see is a kind of primordial soup of vibrating elementary particles. And after zooming in still further, even matter is no longer detectable; what remains is just a field of energy which sometimes presents itself as a particle and sometimes as a wave.
Types of natural radiation
The radiation with which humans have been living in harmony since time immemorial and which is a part of their natural habitat, is the radiation of the earth's magnetic field, the so-called geopathic radiation, cosmic radiation and the Schumann resonance.
Earth's magnetic field
From the earth's core a huge magnetic field radiates which surrounds the earth. This earth's magnetic field reaches many thousands of miles away in space and protects the planet from the ionizing radiation of the solar wind. The strength of this magnetic field fluctuates: the closer to the earth's core, the stronger it is. The presence of, for example, fault lines, water veins or metal in the earth's crust can strengthen the magnetic radiation. Traditionally, farmers knew that the magnetic field of the earth affected crops and animals. With the help of a so-called divining rod, a Y-shaped stick or two L-shaped copper bars, the 'earth rays' were measured. This gave an indication of the suitability of a location for growing crops or building houses. Earth rays are sometimes referred to as products of human fantasy, but are in fact nothing else than emanations of the earth's magnetic field. Nowadays these can be measured with scientific measuring equipment.
Cosmic radiation is a collective term for the continuous flow of elementary particles from the cosmos to earth. Cosmic radiation has no known direct physical effect on humans, animals and nature, except that it might affect cloud formation, but this is still debatable.
Schumann resonance field
The atmosphere of the earth naturally contains a series of electromagnetic vibrations which together are called the Schumann resonance. These arise in the ionosphere due to electrical discharges (lightning). There are indications that our body's own electromagnetic fields are tuned to these Schumann waves and to the earth's magnetic field and that these weak natural electromagnetic fields have very beneficial effects on biological systems 
In the past 200 years more and more artificial radiation has been added to all the naturally present radiation. As a result, the harmony between the electromagnetic human being and his electromagnetic environment has become increasingly disrupted. Since the introduction of electricity, people have reported health effects. This year it was reported that in the vicinity of power lines more cases of childhood leukaemia occur.
Since 1990, wireless technology has rapidly become an increasing part of our lives. Wireless technology is used, for example, for mobile phones, wifi, wireless game consoles and ‘smart’ devices, such as the smart meter. Many people mistakenly assume that this method of data transfer is comparable to that of radio and television broadcasting. However, wireless technology does not use radio waves, but the high-frequency microwaves; this is the same type of radiation as is used for operating the microwave. Hence, mobile phones have a SAR value, which indicates the amount of time it takes for a warming of 1 degree Celsius to take place.
When wireless technology was introduced, only this warming effect has been taken into account, while the biological effects have been excluded. However, these biological effects are the ones that are so frequently reported. The University of Utrecht indicates that 3 to 10 percent of the Dutch population has ever related physical complaints to radiation.
In order to meet the enormous demand for wireless communications a great number of transmission masts is needed. As a consequence, the natural background radiation of 0.000,001 μW/m2 has by now been overruled by unnatural radiation and frequencies with a factor of more than a million times.