| The relation of the cellular telephone usage and cancer | | | | Several researches suggest that mobile suage may |
| has been a long standing suspicion and commonly | | | | be associated with tumours such as astrocytomas, |
| contradictory reports have been presented on this | | | | gliomas and acoustic neuromas. |
| subject. | | | | However, research into this field is fraught with certain |
| It is prudent to be familiar with the basic physics and | | | | drawbacks, such as recall bias, inaccurate radiation |
| marking of the cellular telephones. Cellular telephones | | | | dose quantification, selection bias and so on. Animal |
| emit and receive radio frequency waves from | | | | studies have provided no consistent relation between |
| transmission towers located terrestrially. Most of the | | | | cancer and non-thermal range exposure. Based on the |
| cellular hand sets rise GSM protocol (Global system | | | | human studies reviewed, certain factors come forth as |
| for mobiles followed by CDMA protocol (code division | | | | having a possible risk towards development of cancer, |
| multiple access). The cellular telephones can be | | | | such as use of analog or cordless phones, |
| further divided into analog and digital. The analog | | | | predominant unilateral usage and exposure for more |
| phones have greater loss of data while transit, so, to | | | | than 10 years. |
| augment it, they transmit and receive signals at higher | | | | A special concern is the young adults of children |
| power in comparison to the digital cellular telephones. | | | | population at large who use cellular telephones |
| This creates an electromagnetic filed which human | | | | indiscriminately. While it may well be prudent to avoid |
| tissues absorb, which is measured by (SAR) specific | | | | these practices, it must be emphasized that clear, |
| absorption ratio. | | | | long-term cohort studies have not been conducted to |
| The international commission on non ionising radiation | | | | prove any causative role of mobile phone radiation in |
| protection (ICNIRP) has recommended SAR below 2w | | | | cancer pathogenesis. |
| kg for users of cellular telephones. | | | | |