Cordless phones also use wireless radiation to transmit  signals.  According to the Bioinitiative Report of 2007, a 600+ page report written by a team of 14 scientists throughout the world, use of cordless phones predominantly on the same side of the head for more than 10 years increases people's risk of a malignant glioma (brain tumor) by 470%.  If a cordless phone is used on both sides of the head for more than ten years, your risk of a malignant glioma is 220% higher.

The base station of (DECT) cordless phones constantly emits wireless radiation.  Although cordless phones have been used in homes for decades, those cordless phones radiated only when you were on the phone. Today’s DECT cordless phones operate in a higher frequency band (1.9 GHz) and expose us longer to radiofrequency radiation than in earlier decades.

The following videos demonstrate how wireless radiation from cordless phones can affect your heart and blood.

 

Dr. Magda Havas of Trent University, created a 7 minute video that demonstrates radiation from a cordless (DECT) phone can interfere with the heart.  

It also shows that non-thermal exposure, at levels well below federal guidelines in most countries (0.3% of the 1000 microW/cm2), has biological and health effects. 
Another 2.5 minute video by Dr. Havas demonstrates the effect on blood before and after using a computer and cordless phone. 
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