Effects of electromagnetic field exposure on the heart

Abstract

The use of electrical devices has gradually increased throughout the last century, and scientists have suggested that electromagnetic fields (EMF) generated by such devices may have harmful effects on living creatures. This work represents a systematic review of collective scholarly literature examining the effects of EMFs on the heart. Although most works describing effects of EMF exposure have been carried out using city electric frequencies (50-60 Hz), a consensus has not been reached about whether long- or short-term exposure to 50-60 Hz EMF negatively affects the heart. Studies have indicated that EMFs produced at cell-phone frequencies cause no-effect on the heart. Differences between results of studies may be due to a compensatory response developed by the body over time. At greater EMF strengths or shorter exposures, the ability of the body to develop compensation mechanisms is reduced and the potential for heart-related effects increases. It is noteworthy that diseases of heart tissues such as myocardial ischemia can also be successfully treated using EMF. Despite the substantial volume of data that has been collected on heart-related effects of EMFs, additional studies are needed at the cellular and molecular level to fully clarify the subject. Until the effects of EMF on heart tissue are more fully explored, electronic devices generating EMFs should be approached with caution.

Progress in polymers and polymer composites used as efficient materials for EMI shielding

“…The acting of these factors can also affect functions of human body, mainly when organisms are subjected to their exposition for longer time. The most common symptoms are headaches, irritability, insomnia, fatigue or failure of attentions, which may be the reason for more serious illnesses [3][4][5]. Therefore the need electromagnetic radiation shielding has become more and more pronounced over the last decades and it is very perspective sphere of research and investigations.…”

Rubber magnets based on NBR and lithium ferrite with the ability to absorb electromagnetic radiation

“…EMR waves from these devices can interfere with other electronic appliances, which can lead to a decrease in their efficiency and, in some cases, even to their malfunction. These factors can also affect functions of human body, mainly when organisms are exposed to them for a longer time . Therefore, there is a great need for EMR shielding of electronic and radiation sources …”

Age-Dependent Comparative Study of 4 Hz and 8 Hz EMF Exposure on Heart Muscle Tissue Hydration of Rats

“…In literature there are a lot of contradictory data on the biological effect of electromagnetic fields (EMF) on heart function [1] [2] [3] [4]. Our weak knowledge about cellular and molecular mechanisms of EMF effect on heart muscle is the reason of the variability of these data.…”