Cell phones can affect sperm quality, researcher says

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"We believe that these devices are used because we consider them very safe, but it could cause harmful effects due to the proximity of the phones and the exposure that they are causing to the gonads," says lead researcher Ashok Agarwal, the Director of the Center for Reproductive Medicine.
In the small study, Agarwal's team took semen samples from 32 men and brought them to the lab. Each man's sample was placed into small, conical tubes and divided into two parts: a test group and a control group. The control group was unexposed to cell phone emissions, but kept under the same conditions and temperature as the test group.
The semen in the test group was placed 2.5 centimeters from an 850 MHz cell phone in talk mode for 1 hour. Researchers say that 850 MHz is the most commonly used frequency.
They used the measurement of 2.5 centimeters to mimic the distance between the trouser pocket and the testes. Agarwal reasoned that many men keep their active cell phones in their pants pocket while talking on their headsets.
Overall, researchers found an increase in oxidative stress such as a significant increase in free radicals and oxidants and a decrease in antioxidants. Agarwal says that equals a decrease in sperm's quality, including motility and viability. Evidence of oxidative stress can appear under other conditions, including exposure to certain environmental pollutants or infections in the urinary genital tract.
"On average, there was an 85 percent increase in the amount of free radicals for all the subjects in the study. Free radicals have been linked to a variety of diseases in humans including cancer," said Agarwal. Free radicals have been linked to decreased sperm quality in previous studies.

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