It's no news that using mobile phones could cause cancers. Add sleep disorder to the list of its harmful effects.
A team of researchers in Europe and the United States has carried out a study and found that radiation from mobile phones delays and reduces sleep, and causes headaches as well as confusion, 'The Independent' reported today.
In fact, according to the researchers, using the cell phones before bed causes people to take longer to reach the deeper stages of sleep and to spend less time in them, thereby interfering with the body's ability to repair damage suffered during the day.
"We did find an effect from mobile phones from exposure scenarios that were realistic. This suggests that they have measurable effects on the brain. The radiation may activate the brain's stress system making people more alert and more focused, and decreasing their ability to wind down and fall asleep," lead researcher Prof Bengt Arnetz said.
The researchers came to the conclusion after analysing 35 men and 36 women aged between 18 and 45. Some were exposed to radiation that exactly mimicked what is received when using mobile phones; others were placed in precisely the same conditions, but given only 'sham' exposure, receiving no radiation at all.
The researchers found that the people who had received the radiation took longer to enter the first of the deeper stages of sleep, and spent less time in the deepest one.
"The study indicates that during laboratory exposure to 884 MHz wireless signals components of sleep believed to be important for recovery from daily wear and tear are adversely affected," Prof Arnetz was quoted as saying.
The results of the study by the researchers from the Karolinska Institute and Uppsala University in Sweden and from Wayne State University in Michigan have been published by the Massachusetts Institute of Technology.