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Health and Safety Information       73
Section 11: Health and Safety Information
This section outlines the safety precautions 
associated with using your phone. The terms 
“mobile device” or “cell phone” are used in this 
section to refer to your phone. Read this 
information before using your mobile device
.
Exposure to Radio Frequency 
(RF) Signals
The U.S. Food and Drug Administration (FDA) has 
published information for consumers relating to 
Radio Frequency (RF) exposure from wireless 
phones. The FDA publication includes the 
following information:
Do cell phones pose a health hazard?
Many people are concerned that cell phone 
radiation will cause cancer or other serious 
health hazards. The weight of scientific evidence 
has not linked cell phones with any health 
problems.
Cell phones emit low levels of Radio Frequency 
(RF) energy. Over the past 15 years, scientists 
have conducted hundreds of studies looking at 
the biological effects of the radio frequency 
energy emitted by cell phones. While some 
researchers have reported biological changes 
associated with RF energy, these studies have 
failed to be replicated. The majority of studies 
published have failed to show an association 
between exposure to radio frequency from a cell 
phone and health problems.
The low levels of RF cell phones emit while in 
use are in the microwave frequency range. They 
also emit RF at substantially reduced time 
intervals when in the stand-by mode. Whereas 
high levels of RF can produce health effects (by 
heating tissue), exposure to low level RF that 
does not produce heating effects causes no 
known adverse health effects.
The biological effects of radio frequency energy 
should not be confused with the effects from 
other types of electromagnetic energy.
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