This study says spending 50 min with your cellphone close to ear is enough to alter Glucose metabolism showing increased brain activity in part of brain closest to antenna. SO weak electromagnetic radiation does have an effect on brain
Volkow's team studied 47 people who had brain scans while a cellphone was turned on for 50 minutes and another while the phone was turned off. While there was no overall change in brain metabolism, they found a 7% increase in brain metabolism in the region closest to the cellphone antenna when the phone was on. As Volkow notes at the end of the Nytimes article, this may lead to the discovery of a mechanism for brain stimulation. Right now they don’t know what the mechanism is by which the electromagnetic field is causing the glucose metabolism. If neuronal firing is being altered, and if the bandwidth turns out to be sufficiently high (i.e. if the stimulation can be made sufficiently precise), this could eventually lead to a wireless brain-machine in
Volkow's team studied 47 people who had brain scans while a cellphone was turned on for 50 minutes and another while the phone was turned off. While there was no overall change in brain metabolism, they found a 7% increase in brain metabolism in the region closest to the cellphone antenna when the phone was on. As Volkow notes at the end of the Nytimes article, this may lead to the discovery of a mechanism for brain stimulation. Right now they don’t know what the mechanism is by which the electromagnetic field is causing the glucose metabolism. If neuronal firing is being altered, and if the bandwidth turns out to be sufficiently high (i.e. if the stimulation can be made sufficiently precise), this could eventually lead to a wireless brain-machine in
Nora D. Volkow, Dardo Tomasi, Gene-Jack Wang, Paul Vaska, Joanna S. Fowler, Frank Telang, Dave Alexoff, Jean Logan, Christopher Wong. Effects of Cell Phone Radiofrequency Signal Exposure on Brain Glucose Metabolism. JAMA. 2011;305(8):808-813.
One more study done at IIT-Mumbai and telecom sector says dont use cellphone for more than 6 min .
The options are to put the phone on speaker mode and hold it at least a foot away from your body or use a headset. They suggested putting up a wire mesh or water curtains, or growing plants to prevent radiation from cell, TV or FM towers in the vicinity of 500 metres to one km. Radiation from cell phones and towers posed serious health risks, including loss of memory, lack of concentration, disturbances in your digestive system and sleep disorders.
IIT-Bombay professor Girish Kumar warned against cell phone usage for more than six minutes a day as handsets have a specific absorption rate (capacity to absorb radiation) of 1.6 watts per kg and thus can absorb radiation only for six minutes a dayand later can harm the body. "After formally speaking on the cell phone, one should switch to a landline phone," he added, pointing out that the brain had a high risk of getting affected by radiation.
One more study done at IIT-Mumbai and telecom sector says dont use cellphone for more than 6 min .
The options are to put the phone on speaker mode and hold it at least a foot away from your body or use a headset. They suggested putting up a wire mesh or water curtains, or growing plants to prevent radiation from cell, TV or FM towers in the vicinity of 500 metres to one km. Radiation from cell phones and towers posed serious health risks, including loss of memory, lack of concentration, disturbances in your digestive system and sleep disorders.
IIT-Bombay professor Girish Kumar warned against cell phone usage for more than six minutes a day as handsets have a specific absorption rate (capacity to absorb radiation) of 1.6 watts per kg and thus can absorb radiation only for six minutes a dayand later can harm the body. "After formally speaking on the cell phone, one should switch to a landline phone," he added, pointing out that the brain had a high risk of getting affected by radiation.
He said the antennas of repeaters near residential areas or working stations should not give a radiation frequency of more than 0.1 watts. Similarly, Kumar said, the ideal wattage for cell towers should be two watts in densely populated urban areas.
"Towers give off radiation of up to 400 watts as more carriers are fitted on the antennas. A microwave is of 500-watt capacity so imagine the effect towers can leave on your body," he added. According to Kumar, wi-fi, of not more than 100 mw, should also be switched off when not in use.
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