Although it has not been stated so far that the use of mobile phones can be detrimental to human health, it is worth to observe several simple recommendations, which make it possible to minimise the possible harmful effect of mobiles on our health. Experts advise us to stick to the following rules: Try to talk as little as possible on mobile phones – some matters can be settled otherwise, e.g. via e-mail or in person, talk in places with high signal quality – if the talking person is located inside of a building, a car or a place with low signal quality, the phone increases the transmission rate considerably; sometimes, it is enough to leave the building, leave the car or take a short walk in order to have the amount of radiation emitted by the antenna significantly decreased. Use headsets and speakerphones – the electric field generated by the antenna of the phone will namely decrease in inverse proportion to the distance.Twofold increase of the distance from the antenna to the head results in fourfold decrease of the energy absorbed by the body.The use of speakerphones can be most profitable especially during talking in a car, as the body of the car suppresses waves emitted by the phone, and the signal transmission rate is thus considerably increased.Purchasing of an external antenna will result in improvement of the signal quality and will allow for a reduction of the transmission rate.It might also be a good solution to use headsets, including Bluetooth sets.However, some opinions say that the cable connecting the phone with the headset can, in some cases, transmit the signal from the antenna directly into the ear.In case of using of Bluetooth sets, which are wireless, this problem does not occur. Do not put the phone to your ear at the moment when connection is being established – when the number is dialled and the connection is being established, there is a short moment in which the phone transmits a signal at a rate close to the maximum, and the signal rate decreases only after the connection has been established; therefore, it is advisable to wait for a while and put the phone to your ear a little bit later. | 
