Читать книгу Anti-Aging Therapeutics Volume XV - A4M American Academy - Страница 38

Some people with electrosensitivity complain of heart problems including some combination of a rapid or irregular heartbeat, chest pain, shortness of breath and feelings of anxiety that appear quickly and for no obvious reason. Their symptoms resemble those of a heart attack, which leads to even greater anxiety.

Since the functioning of the human heart is relatively easy to monitor, we tested to see if the radiation from a base station of a cordless phone (cradle for the phone) could affect the heart in a double-blind, sham controlled experiment.¹¹ We used the cradle for a cordless phone because, in North America, these cradles emit radio frequency radiation whether or not they are being used for a call. This radiation is constant and relatively powerful as the signal can reach the phone at distances of 100 meters or more.

We tested 25 volunteers in Colorado using Nerve Express heart rate variability and found that 40% (10 participants) responded to the radiation. Some developed tachycardia or arrhythmia only while they were exposed to the radio frequency radiation generated by the base of the cordless phone. The intensity of this radiation was well below (0.3%) international, U.S., and Canadian guidelines. In other words, they responded only while the cradle was plugged into a live outlet. When the cradle was plugged into a dead outlet there was no radiation and no response. A common response for sensitive individuals was upregulation of the sympathetic nervous system and downregulation of the parasympathetic nervous system that is typical of a “fight or flight” stress response (Fig. 8).

This study shows that the radiation emitted by a common device, at levels well below federal guidelines, affects the autonomic nervous system and may put some individuals with pre-existing heart conditions at risk when exposed to electromagnetic radiation to which they are sensitive.

Figure 8. Typical response of someone who is electrosensitive and responding to the radiation generated by the base station of the cordless phone. During exposure (phone) the heart rate increases from 65 to 86 and 72 beats per minute and returns to “normal” during sham exposure. Also during exposure there is an upregulation of the sympathetic nervous system and a downregulation of the parasympathetic.