Thursday, June 17, 2010

Can Cellphone Cause Brain Tumor? l by **

This question came when we discussed about the electromagnetic waves which separated into 7 spectrums, Radio, Microwaves, Infrared, Visible, UV, X-ray and Gamma.. So, one students came out with one fact that he heard handphone can cause brain tumor. Which ray used in hp and how does it happen? 
A microwave oven uses microwaves to heat food. Microwaves are radio waves. In the case of microwave ovens, the commonly used radio wave frequency is roughly 2,500 megahertz (2.5 gigahertz). Radio waves in this frequency range have an interesting property: they are absorbed by water, fats and sugars. When they are absorbed they are converted directly into atomic motion - heat. Microwaves in this frequency range have another interesting property: they are not absorbed by most plastics, glass or ceramics. Metal reflects microwaves, which is why metal pans do not work well in a microwave oven.

Many cellular phones have two signal strengths: 0.6 watts and 5 watts (for comparison, most CB radios transmit at 4 watts). The base station is also transmitting at low power.
Microwaves ovens have 500 watts to 1.1k watts.

Below you can see comparison of radiation of cellular phones and microwave ovens:
It may seem that mobile phones cause negligible radiation in comparison to microwave ovens but a simple calculation will show you the opposite.
If you talk on the cellular phone just one hour a day the whole radiation is as follows:

10.000 watts radiation of cellular phone (ten times more powerfull than microwaves ovens) is as if you would put your head in a microwaves oven.You can imagine what would happen to you 
>>> you would burn like a sausage.  

What Causes Cancer (brain tumor)?
Mutations in tumor suppressor genes are another common cause of cancer. As you might expect, a tumor suppressor gene is supposed to prevent tumors. But when these genes are damaged, they can allow cancer to develop instead of preventing it. One of these genes, p53, normally prevents cells with abnormal DNA from surviving. When p53 is defective, these cells with abnormal DNA survive and can multiply, increasing the probability of developing cancer (brain tumor).
Simple image belowe how brain tumor start: 



  1. the bad effects of using cellphone??
    no wonder nowadays its a magic for human to live until 80-100 years old..

  2. yup. the radiation also can change DNA and causes mutation. it proved by biological research on rat.


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