Part of the radio waves emitted by a mobile telephone handset is absorbed by the human head.
The radio waves emitted by a GSM handset, (Global System for Mobile Communications) can have a peak power of 2 watts.
An analogue phone has a maximum transmit power of 3.6 watts.
Other digital mobile technologies, such as CDMA and TDMA, use lower output power, typically below 1 watt.
The maximum power output from a mobile phone is regulated by the mobile phone standard it is following and by the regulatory agencies in each country.
Swedish researchers from the University Lund, Salford, Brun, Perrson, Eberhardt and Malmgren, have studied the effects of microwave radiation on the rat brain.
They found a leakage of albumin into brain via a permeated blood-brain barrier.
The rate at which radiation is absorbed by the human body is measured by the Specific Absorption Rate (SAR), and its maximum levels for modern handsets have been set by governmental regulating agencies in many countries.
Some users of mobile handsets have reported feeling several unspecific symptoms during and after its use; ranging from burning and tingling sensations...
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