Since the creation of the earth, electromagnetic fields have been part of our environment. The earth's magnetic field, made visible in the alignment of a compass needle, or the electromagnetic field of the sun have influenced the development of life on our planet since the beginning of time. Electromagnetic waves accompany us at every step. Many things in our lives that we take for granted today would not be possible without them. Every technological device (an electric razor, refrigerator or toaster) creates electromagnetic fields as it consumes electricity. From a physics standpoint, they are an unavoidable by-product. For the transmission of information in television, radio and mobile communication, however, electromagnetic waves are essential - they are the means of transportation for all wireless information and signals.
High frequency electromagnetic fields, such as are used in mobile communication, generate heat. This is known as the thermal effect. Like the rays of the sun, electromagnetic waves emitted by a mobile phone also warm the skin - but are so much weaker that they have no effect on the human body. The speculation that so-called "athermal" effects - effects not related to heat - may have an influence on health when thresholds are observed is not backed by any scientific data.