Although there are different models of phones and all use different frequencies (900 MHz, 1800 MHz and 2.4 GHz now), all generate microwaves and extremely low frequency and affect us more or less depending on their conditions of use (duration, location, manufacturer's model, users etc.).  So generally some rules of prevention can be observed. 

Wherever possible it is preferable to use her phone when: 

 - The signal goes well (maximum) if the phone should make more. Avoid using your mobile phone if you're too far from a relay. To find out check strips of receipt of your phone. The more you are far from over, plus your phone must compensate for the lack of network transmission power higher and potentially more harmful. 

 - We are not moving (because the signal that changes, try our phone whenever the signal from the antenna relay closest). Before the new signal is found adequate, the intermediate signal and thus increases the radiation of electromagnetic waves. 

 - We do not find in a metal structure (car, train, subway) isolated from the earth. Indeed, as in a microwave oven, the tissues of our body warm by microwaves that can not escape and that reverberate on metal surfaces increasing their power. This is called "effect or Faraday cage. All persons, animals or plants present in this structure are exposed to global warming. We're a bit more vulnerable in a car because our head is near the roof reverberates. In transit, the power increases with the number of users creating a real electromagnetic cloud. So avoid using her mobile phone in public places such as subway, train or bus where neighbors are passively exposed. 

 - When we travel by TGV, even if copies are ecologically, in terms of health is quite another thing! The TGV, operating with an alternating current high voltage, produce electromagnetic fields that propagate inside the trains. Result? To benefit from headaches and concentration problems for users traveling daily. 

 - Let's try to stay more than a meter away from a person in communication, 

 - Move your laptop sensitive areas such as the genital areas, organs and excretory important as the heart, spleen, liver, and of course the belly for pregnant women because the placenta and the embryo cells are very sensitive. 

 - Do not let our children play with your mobile phone. This is not a toy. A new law will be adopted not to leave children under 12 exposed to cell phones, there must be a reason. 

 - Let us choose a unit with the DAS as low as possible relative to its needs (the "Specific Absorption Rate" measures the power absorbed by the body). Although the SAR should be reported on all phones sold, it is not always the case. Also you can find a classification of DAS contemporary phones from different manufacturers on www.guerir.fr. 

 - Let's avoid possible to wear a mobile phone itself, even in standby. Do not let him near her body at night (under the pillow or on the bedside table) and particularly in the case of pregnant women - or put in airplane mode "or" offline "that the effect of cutting the electromagnetic emissions. 

 - We must avoid using their phone as an alarm or if you can not do otherwise, we make sure it is turned off for the night. Contrary to popular belief, most models of GSM can be turned off once the alarm setting. It rekindled automatically at the appointed time. If this is not the case, make sure the phone is at least 1.5 m in our heads. 

 - Avoid having to call in metallic objects close to the radiation from the phone (earrings, sunglasses with metal frames) because measures have shown that DAS was increased to 30%. As the microwaves is increased in the region (eyes, ears). 

 - In communications, change sides (ear) regularly, and before putting the phone against your ear, wait until the match is stalled (down the power of the electromagnetic field emitted). 

 - In communications, try as much as possible to keep the phone more than 1 m from the body (the amplitude of the field down four times to 10 cm, and is fifty times lower at 1 m distance). Using dice as possible mode loudspeaker, hands free kit (fitted with an air tube if possible) or a bluetooth headset (less than 1 / 10 of the electromagnetic emission of the phone on average). 

 "It is clear that these recommendations are more to be taken seriously when it comes to children, infants but also teenagers who are most vulnerable. Their brains are smaller, their thinner skull and nervous system in full development (growing to 20 years), they set faster and more massive waves than do adults (up to 50% more ).

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