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Study alleges cordless, cellular phones can cause heart irregularities



Amount of radiation emitted by phone in study was far below US, Canadian limits

Microwave radiation produced by digital cordless phones and other cordless devices, such as cellular phones, can cause irregular heartbeats and other symptoms, according to a little-noticed study published Friday in the peer-reviewed European Journal of Oncology.

The study (.pdf) found that microwave radiation from cordless phones could nearly double the heart rate of those with a condition referred to as “electrohypersensitivity.”


The World Health Organization defines electrohypersensitivity as “a phenomenon where individuals experience adverse health effects while using or being in the vicinity of devices emanating electric, magnetic, or electromagnetic fields (EMFs).”

Based on current trends, by 2017, 50 percent of the population can be expected to become electrosensitive, according to an article (.pdf) published in the journal Electromagnetic Biology and Medicine.

In the study, which was led by Professor Magda Havas of Trent University in Canada, twenty-five participants sat near a cordless phones while their heart rate variability was monitored.

“The phone we used was an AT&T digital ally pulsed (100 Hz) cordless telephone that operates at 2.4 GHz or frequencies commonly used for microwave ovens and Wi-Fi,” Havas and her colleagues say in their study.


The amount of microwave radiation produced by these cordless phones is far below the federal guidelines in Canada and the United States, which prohibit levels of microwave radiation exposure above 1000microW/cm2.

While sitting near the cordless phone, the authors of the study connected either a live power cord or a sham cord to the phone. The participants did not know whether the cordless phone was connected to a real or fake cord, a procedure known as a “blind.”

Forty percent of the participants had a “moderate to severe reaction” when the cordless phone was connected to a live power cord and emitting microwaves. The effects of the microwaves included arrhythmia (irregular heart beats) and/or tachycardia (rapid heart rate).


In contrast to older participants, those between the ages of 37 to 58 displayed the most intense reaction to exposure to microwaves, “presumably because they were healthy enough to mount a response to a stressor.”

Other symptoms reportedly caused by electrohypersensitivity include headaches, fatigue, difficulty concentrating, poor short-term memory, chronic fatigue, difficulty sleeping, skin problems, tinnitus, nausea, and dizziness.

“This study provides scientific evidence that some individuals may experience arrhythmia, heart palpitations, heart flutter, or rapid heartbeat and/or vasovagal symptoms such as dizziness, nausea, profuse sweating and syncope when exposed to electromagnetic devices,” explains Havas and her colleagues in their study.


“While not everyone who is electrically sensitive responds in this manner, those who do will have difficulty being in environments where microwave radiation is present, which is virtually everywhere in our modern, wireless culture,” adds Havas. “Cordless phones and cell phones as well as wireless computers and wi-fi networks generate this form of microwave radiation.”

CORRECTION: Previous version of this story incorrectly referred to cordless phones as cellular phones.

Report typos and corrections to: [email protected].
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"I understand that," said Lewandowski's attorney. "I will leave after I register a formal protest based upon the debate that I heard. These seem to be unauthorized questions and I know you choose your words carefully—"

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