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experiments, Becker and Selden (1985) wrote, In 1976, a group under J. J. Noval at the Naval Aerospace Medical Research Laboratory at Pensacola, Florida, found the slow stress response in rats from very weak electric fields, as low as five thousandths of a volt per centimeter. They discovered that when such fields vibrated in the ELF range, they increased levels of the neurotransmitter acetylcholine in the brainstem, apparently in a way that activated a distress signal subliminally, without the animals becoming aware of it. The scariest part was that the fields Noval used were well within the background levels of a typical office, with its overhead lighting, typewriters, computers, and other equipment. Workers in such an environment are exposed to electric fields between a hundredth and a tenth of a volt per centimeter and magnetic fields between a hundredth and a tenth of a gauss. (p. 278) What is the difference between these voltages per centimeter? The weak electric fields that created a slow stress response are as low as 0.005 V/cm. The range of electrical fields in a typical office is 0.01 V/cm on the low end and 0.1 V/cm on the high end, making a typical office environment exposing individuals to electrical fields anywhere from two to 19 times higher than the experiment creating a slow stress response. A skeptic might say that there is a large difference between the size of a rat’s or a salamander’s brain and a human’s brain. The skeptic could continue to say that billions of people around the world are working in these environments every day and do not show signs of stress. However, that individual would question such assumptions should he or she turn to another experiment conducted by Friedman and described by Becker and Selden (1985): Friedman measured cortisone levels in monkeys exposed to a 200-gauss magnetic field for four hours a day. They showed the stress response for six days, but it then subsided, 18PDF Image | Light, Sound, Vibration for Healing and Stress
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