While it has not been proved conclusively, excessive use of mobile phones are said to be a possible cause for certain health hazards ranging from headaches to brain tumor.
All mobile phone manufacturers, including Nokia, iPhone and HTC while insisting that holding mobiles against the ear and head is harmless, carry small-print warnings in their manuals.
Mobile phone giants have been accused of keeping the warnings about the health risks of using their handsets undercover-by keeping them buried deep inside the manual.
A warning that Apple’s popular iPhone should be kept at least 15mm away from the body is buried deep inside the handbook.
BlackBerry fine print says customers should use their devices hands-free or keep them an inch from the body ‘including the abdomen of pregnant women and the lower abdomen of teenagers’
The safety advice in manuals is designed to limit so-called Radio Frequency exposure. This is said to heat body tissue and some – inconclusive – research suggests it is linked to tumours in the brain.
Most RF exposure comes from the antenna and it can increase when a phone is kept in a pocket because phones increase their power output when a network signal weakens.
Men who carry handsets on their belt or in their pockets with the keypad facing outward will suffer higher exposure because the antenna, which is always at the back, is close to the body.
Some girls carry them in chest bags which hang just below their breasts. Breasts, eyes and testicles absorb external RF energy the most. Blood-rich organs, such as the liver, kidneys and heart are among the top energy absorbers
When a phone has to power up, it sends high SAR power into the trunk and towards the kidneys and liver. It can be the testicles if in a trouser pocket. (Ouch!)
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