Scientists in the US have published a study suggesting that mobile phone use may have an effect on the brain.
The National Institutes of Health found that brains exposed to the magnetic fields produced by mobile phones had higher sugar levels than usual.
When scanned the researchers found a 7% increase in glucose levels in the part of the brain close to the mobile phone’s antenna.
However, the researchers say that this doesn’t imply any health risks associated with mobile phone use.
‘It is important to fully appreciate that no health risk is identified in this paper,’ Professor Malcom Sperrin, from the Royal Berkshire Hospital, told the BBC.
Professor Patrick Haggard from University College London also told the BBC that ‘much larger fluctuations in brain metabolic rate occur naturally, for example during thinking.’ However, he said that more tests needed to be carried out on the effects of mobile phone use on brain metabolism before any conclusions could be drawn.
A study by Danish scientists in 2009 found that there had been no increase in the number of adult brain tumours since mobile phone usage took off in the mid-1990s.
Last year COSMOS, the largest ever study into the health effects of mobile phone use, launched across Europe, which will track around a quarter of a million people for the next 30 years.