# Schumann Resonances and the Human Body: Questions About Interactions, Problems and Prospects
## 3 Results
### Earth's Magnetic Field and Schumann Resonance Frequencies: Origin and Essence
#### 3.4.4 Results of Studying the Interaction of Schumann Resonances with the Skin of the Human Body  
It is well known that the skin of the human body exhibits electromagnetic heterogeneity. The study of the role and participation of the skin of the human body in the transmission of electromagnetic signals has long been another an important problem for fundamental science and medicine. Therefore, for future research, it is important to take into account that from 1984 to 2005, a transdisciplinary group of scientists from the University School of Electrical and Computer Engineering Melbourne (Australia), Custom Systems Pty Ltd. (Australia) and Engineering Dept Huntsville (U.S.A) carried out a series of studies on the electrical activity of the brain and skin and its interaction with SRs [123; 124; 125; 126; 127; 128]. The reactions of electrophysiological signals of the human body to the influence of electromagnetic fields of extremely low frequencies, including SRs, were studied. Frequency passbands were established for skin areas with increased electrical conductivity properties, i.e., \"meridians of traditional medicine\", which were in the ranges and areas of SRs. Depending on the meridian and functional state of the study participant, reliable correlations of the interaction with SRs were observed [123; 124; 125; 126; 127; 128]. Based on their results and existing data from other scientific studies at that time, the scientists concluded that it is typical for the human body to detect, absorb and respond to the influence of electromagnetic fields of extremely low frequencies, including SR frequencies [123; 124; 125; 126; 127; 128]. The fact that the electrophysiological parameters of the skin changed when interacting with low frequencies and SRs allowed scientists to draw a parallel between the transmission of electromagnetic signals, areas of the skin with increased electrical conductivity properties/\"meridians of traditional medicine\" and the principle of the functioning of telecommunication systems [123]. Science is now making great progress in the study and understanding of the electromagnetic mechanisms of biological communication between cells. Therefore, this series of studies is important and should be rethought from the perspective of modern biophysical knowledge and considered when performing future clinical studies involving humans. Table 1 presents a systematization of studies used in the review of publications studying the interactions of SRs with the human body that were carried out in the 21 st century. Conceptualization of the Mechanisms of Interaction Between the Human Body and the Magnetic Field of the Earth at Schumann Resonance Frequencies  
Since there is evidence of the influence of SRs on the nervous system, cardiovascular system and kidneys, the possible mechanisms of these interactions with the human body were conceptualized. The most obvious solution for the interaction of SRs and the brain is the forced resonance mechanism. In this case, the frequency of the forcing effect (for example, the frequencies of the first harmonic of the Earth's magnetic field) coincides with the natural frequency of the system (brain rhythms) [123; 129]. It is possible that the frequency characteristics of SRs and brain rhythms coincide; this is a special case of general biological electromagnetic synchronization in the biosphere of planet Earth. This idea is inspired by the existence of another classic biological example of forced resonance: the response of the human body to a frequency of 40 GHz corresponds to the resonance of the tertiary structure of the deoxyribonucleic acid helix [130]. The direct effect of variations in the amplitudes of SRs can be mediated through the mechanism of reaction of nanocrystals of ferrimagnetic minerals in human cells, for example, with magnetite (Fe\({}_{3}\)O\({}_{4}\)). The presence of biogenic magnetite in the cells of brain structures and other human organs has been proven.