Samsung SCH-I535MBPVZW - Manual (Page 8)

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Very high levels of electromagnetic energy, such as is found in X-rays and
gamma rays, can ionize biological tissues. Ionization is a process where
electrons are stripped away from their normal locations in atoms and
molecules. It can permanently damage biological tissues including DNA,
the genetic material.
The energy levels associated with radio frequency energy, including both
radio waves and microwaves, are not great enough to cause ionization of
atoms and molecules. Therefore, RF energy is a type of non-ionizing
radiation. Other types of non-ionizing radiation include visible light,
infrared radiation (heat), and other forms of electromagnetic radiation with
relatively low frequencies.
While RF energy does not ionize particles, large amounts can increase
body temperatures and cause tissue damage. Two areas of the body, the
eyes and the testes, are particularly vulnerable to RF heating because
there is relatively little blood flow in them to carry away excess heat.
Research Results to Date: Is there a connection between RF and
certain health problems?
The results of most studies conducted to date say no. In addition, attempts
to replicate and confirm the few studies that have shown a connection
have failed.
The scientific community at large therefore believes that the weight of
scientific evidence does not show an association between exposure to
Radio Frequency (RF) from cell phones and adverse health outcomes. Still
the scientific community has supported additional research to address
gaps in knowledge. Some of these studies are described below.
Interphone Study
Interphone is a large international study designed to determine whether
cell phones increase the risk of head and neck cancer. A report published
in the International Journal of Epidemiology (June, 2010) compared cell
phone usage for more than 5,000 people with brain tumors (glioma and
meningioma) and a similar number of healthy controls.
Results of this study did NOT show that cell phones caused brain cancer.
In this study, most people had no increased risk of brain cancer from using
cell phones. For people with the heaviest use of cell phones (an average of
more than ½ hour per day, every day, for over 10 years) the study
suggested a slight increase in brain cancer. However, the authors
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