Mobile
is an inseparable part of our life. We are completely dependent on our mobile phones
and everyone has it, even school children.
We are pretty sure that
most of us are Nomophobiacs at least till some extent. You may have read
reports that this tiny, super functional gadget can be life threatening, but is
it the truth? There are reports that radiation can
even turn your brain into an omelette. We did a little research and got you
some factual answers.
Radiation from your mobile?
Yes! Radiation is present
from mobile phone in the form of electromagnetic waves. Through a particular
radio frequency on these electromagnetic waves, you are able to make and
receive calls. The radiation emission is present in small amounts from your mobile
as these emissions are of short range waves.
Radiation absorption
Small amount of
radio waves emitted
from your mobile is absorbed by the body. According to Wikipedia - the maximum
power output from a mobile phone is regulated by the mobile phone standard. In
most systems the mobile and the base station check reception quality, signal
strength and the power level. It is increased or decreased automatically within
a certain span to accommodate different situations - when you are inside or
outside the building or vehicle.
The rate at which energy
is absorbed by the human body is measured by the Specific Absorption Rate
(SAR). SAR data for specific mobile phones, along with other useful information,
can be found directly on manufacturers' websites.
Effects by mobile radiation
The effects can be of two
types - thermal and non-thermal.
Thermal effects
One of the most common effects by electromagnetic waves is dielectric heating. When a person uses a cell phone, most of the heating effect will occur at the surface of the head.
This heating can increase
your head temperature by a fraction of a degree. However this heat is less than
the heat obtained by sunlight. The blood circulation isn't affected much, as
the brain's blood circulation is capable enough to deal with excess heat, but
the cornea of the eyes is not accustomed to a lot of heat.
Non-thermal effects
The communications
procedure used by mobile phones often result in low-frequency pulse from the
carrier signal.
"Non-thermal
effects" could be reinterpreted as a normal cellular response to an
increase in temperature. This heat can activate several messenger system, gene
expression and production of heat shock protein in order to defend the cell
against stress caused by heat.
According to a study
conducted by The Journal of the American
Medical Association - exposure to radio
frequency signal waves within parts of the brain closest to the cell
phone antenna resulted in increased levels of glucose
metabolism.
In non-thermal effects,
following problems can be seen.
- Blood-brain barrier effects
- Cancer
- Cognitive effects
- Electromagnetic hypersensitivity like tingling
sensation in the skin of the head, headache, dizziness, loss of mental
attention etc.
- Sleep disorders
- Behavioural effects
Reduce the effect of phone
radiation
In order to lower the
effects of mobile phone radiation follow these simple steps:
Keep some distance
Behind every phone packaging, in fine prints most of the mobile brands recommend to keep your cell at least 10millimeters away from your body. Learn to maintain some distance with your tiny buddy. It may sound difficult but it is not impossible.
Weak signal is bad
Cell phones release more radio frequency radiation when the signal is low. That means, if your signal is low avoid using your cell phone to prevent unnecessary harm.
Choose hands-free headsets
Always choose hands-free headsets, as it will help to reduce the radiation emissions to the brain.
Switch sides
Change hands (and ears) frequently while talking on your cell phone to limit the amount of exposure to one side of your head.
Use speakers to dial numbers
The radiofrequency radiation is strongest when your phone is attempting to place a call, so hold it away from your head until you hear someone pick up.
Source : http://timesofindia.indiatimes.com/
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