Harmful or harmless to health, the GSM? The opinions differ and remain unclear. The complexity of l animal or human experiments, even on cells, to obtain certainty d a causal link, n not help.
Care and precautions are
What what it is, the absence of more precise data available to date, care and precautions are required. As it must be said! Because it is fine d impose the mention of the value DAS for all laptop Advisor l purchase a lower SAR value GSM, must know this value declared by the manufacturer does not necessarily l actual l user radio wave exposure.
While the SAR value indicates the maximum exposure that the device can give, the actual exposure varies. In practice, in fact, the power d emission can vary depending on the quality of reception: reception, power d issue (and therefore the exhibition) is much lower. And conversely, GSM automatically adapting its d emission power according to the quality of reception. Better then avoid contact in places where the received signal is low such as an elevator, underground garages, cellar, places with thick walls
Also be aware that the exhibition is more important during the first seconds of the conversation when the device attempts to connect to the network. Similarly, it is recommended d avoid phone in a moving vehicle.
If the technical features of the device, as the SAR value, can have an impact on the health of the user, the latter behavior is also important. To reduce this impact, in addition to moderate use of GSM, l use a headset is strongly recommended. With thread, it would reduce by 10 to 30 times the exhibition of the head even if it is likely to receive radio waves produced by a GSM and d so lead them towards the head. For what is the Bluetooth system, which establishes a contact with GSM wireless, although it emits radio waves, the exhibition with a such headset is, however, very low: 300-1000 times lower than d a GSM! Fault d headset at hand, use the speakerphone function allows also away from the GSM of the brain and thus reduce the exhibition.
The good news is that, paused, a GSM n issues that from time to time a short signal to make its position known to the network. And sleep with his mobile phone on the bedside table? This should, in principle, not harmful to health. The turn off is better.