Cordless Phone Radiation Danger
Still Have a Cordless Phone?
Cordless phone radiation danger isn’t a subject many people think about. Much has been researched, written, and debated about the health risks of cell phone radiation - and rightly so - but what has been lost in this controversy is the fact that cordless phones are just as dangerous as cell phones. In fact, in 2006, Swedish researcher, Lennart Hardell, found that cordless phones are “far more likely to cause brain tumors than cell phones”.

The transmitter base of a cordless phone blasts out high levels of radiation, even when the phone isn’t being charged or in use. Radiation from a cordless phone can be as high as 6.5 volts per meter, which is twice as strong as that found within 100 meters of a cell tower. 

DECT Cordless Phones and Radiation
It’s difficult to find a cordless phone today that isn’t a DECT (Digital Enhanced Cordless Telecommunications) phone, as these phones give much improved performance over the older analog version of cordless phones.

Unfortunately, the health risks of DECT phones are even higher than those of their predecessors. A DECT phone base station continuously emits pulsing microwave radiation at full power. If a typical DECT phone is kept on a bedside table, the person in bed is exposed all night long to this pulsing microwave signal.

Sleep Disorders & Chronic Fatigue
In 2005, an epidemiological study was conducted in Schwartzenburg, Switzerland, to test the effects of the microwave exposure from a shortwave tower on nearby residents. [View] In 2008, another study was conducted on people living near AM & FM towers in Ouruhia, New Zealand.

Findings in both studies suggested that prolonged radio-frequency exposures were linked with serious sleep disorders and chronic fatigue. What’s pertinent here is that the intensity of exposure from the radio towers and short wave transmitter were much lower than that of a DECT phone charger near a bed.

Heart Rate Abnormalities and Cordless Phone Radiation
Recent research has been done measuring the effects of DECT cordless phone radiation on subjects. In 2010, Magda Havas of Trent University, Canada, published the results of a study in the European Journal of Oncology. The results of her double-blind peer-reviewed study showed that the heart rate in many of her subjects was seriously altered: 40% experienced arrhythmia (erratic heart rate) and/or tachycardia (rapid heart rate). [View]

These symptoms were accompanied by pain/pressure in the chest and anxiety that appeared each time the microwave exposure was turned on, and then disappeared when it was turned off. Subjects did not know what was happening or when the switch was made.

What to do about Cordless Phone Radiation Danger?
There are some obvious precautions you can take with cordless phones in your home. First, do not keep a phone near your bed. Try moving it and see if your sleep and fatigue levels improve. Secondly, apply EMF protection directly to the phone (The EarthCalm Quantum Cell is designed specifically for cordless, cell, and wireless).  Finally, if you can find an old-fashioned wired phone, see if you can adapt to that. As inconvenient as a corded phone may be, it’s far safer.


1. Hardell L, Carlberg M. (2009) Mobile phones, cordless phones and the risk of brain tumours. International Journal of Oncology.35(1):5-17.

2.  Hardell L, Carlberg M, and Hansson Mild K (2006). Pooled analysis of two case-control studies on use of cellular and cordless telephonesand the risk for malignant brain tumours diagnosed in 1997-2003. International Archives of Occupational and Environmental Health 79: 630-639.

3.  Hardell L, Carlberg M, and Hansson Mild K (2006). Pooled analysis of two case-control studies on the use of cellular and cordless telephones and the risk of benign brain tumours diagnosed during 1997-2003. International Journal of Oncology 28: 509-518, 2006.

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