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EMFs, Melatonin and your Pineal Gland
January 10th, 2008 · No Comments
-excerpts from an Australian Senate Discussion Paper 10/2007
Both human and animal circadian rhythms are driven by the day/night cycle and are synchronized with natural geomagnetic electromagnetic fields. The major control gland over this natural cycle is the pineal gland which secretes the neurohormone melatonin. During the day, light falling on the eye’s retina produces signals which are biochemically amplified to stimulate the pineal gland to reduce its melatonin output. At night the absence of light with sleep stimulates the pineal gland to produce melatonin.
The circadian production of melatonin is thought to control important processes in the eyes, including restoration of rods (for night vision) at the end of the night, and renewal of cones (for colour vision) at the end of the day. One theory on how man made EMF’s may affect the pineal gland is that the pineal gland may ’sense’ EMF’s as light and therefore reduce melatonin production. A possible cause for such an effect is from insoluble granular material contained within the pineal gland.
Research by Dr. Sidney Lang, an expert on piezoelectricity, which is the production of electric fields by pressure on crystalline structures, has shown that the pineal gland has piezoelectrical activity. Dr Lang hypothesizes that this activity is a function of this granular material and if so it may be responding to narrow wave lenghts.
Once melatonin is produced, its ability to pass through the cell membrane allows it to pass directly into the blood stream. Once in the blood melatonin has access to every cell in the body where it passes through the cell membrane to the cell nucleus, which has receptors for it. A few cell membranes also have receptors for melatonin, which may control the 24 hour circadian rhythm of the endocrine system.
In the cell nucleus, melatonin plays a role in regulating gene expression. The ability of melatonin to enter all cells is also essential for one of the other important functions of melatonin, which is to act as a scavenger of highly toxic oxygen-based free radicals. The production of these free radicals is a consequence of the utilization of oxygen by all organisms. About 1 - 2% of inspired oxygen ends up as toxic free radicals which can damage macromolecules such as DNA, proteins and lipids. This damage is referred to as oxidative stress.
Because of its ability to eliminate free radicals, melatonin is probably the most efficient natural cell protection and oncostatic agent in our bodies. At night, melatonin production floods our bodies, eliminating the build up of free radicals that are being produced, allowing the DNA synthesis and cell division to occur with a far lower chance of damage and hence producing more healthy cells. Melatonin also dampens the release of estrogen, prolonged exposure to which may increase the risk of breast cancer.