argument : Are cell phones safe?


first paragraph: 

There are many organizations regulate the radiation levels in cell phones. Some of them think  that there is no disadvantage for health from cell phones. However, some researches show that using cell phone may cause cancer, make pacemakers doesn't work, decrease ability of having child, harmful for DNA, and dangerous if you using cell phone while you are driving.

second paragraph:

History of the cell phone. The first cell phone was called DynaTAC, a.k.a "the brick". The length is one foot, the weight is two pounds, and it costs $4000 dollars.


third paragraph:

Due to the cell phone was invented, the first safety guidelines for radiation was enacted to make sure that people would not be exposed to the dangerous radiation.


fourth paragraph:

Radio frequency wavelengths are different from sound and water waves. These kind of waves move by electric and magnetic fields, they can run through the solid objects also.


fifth paragraph:

 high end radiation is known to cause cancer, such as X-rays and Gamma rays. However, radiation from cell phone is contained in the low end radiation just higher than radio and TV and is lower than microwave. So the view on cell phones is harmful has yet to be verified


Reference:

http://cellphones.procon.org/#background