Professor Leeka Kheifets and colleagues have just published the results of a second study of almost 29,000 children, investigating the possible relationship between a baby in the womb being exposed to mobile phone radiation and subsequent behaviour problems in the child by the time they are seven.
The authors concluded "We are concerned that early exposure to cell phones could carry a risk, which, if real, would be of public health concern given the widespread use of the technology."
The type of behaviour in their child that the researchers asked mothers about was emotional or behaviour problems, inattention or hyperactivity, or problems with other children. Whether the mothers had spent less time with their children was taken into account. Maternal inattention has been known to result in behavioural problems in children, but this was allowed for in the study.
BlocSocks
An appropriate precautionary measure could be using a mobile phone BlocSock, which will protect the woman's abdomen, as she carries the phone around with her when pregnant (50% of the study mothers left their phone on all the time). A BlocSock will also protect your children.
More children were exposed in the womb than the previous study published in 2008, and more of the seven-year-old children had their own mobile phone, though most did not use them for more than an hour a week.
Children who were exposed both in the womb and later were the most likely to show behavioural problems; those exposed only in the womb were slightly less likely to have behavioural problems, and those who were only using a mobile by the age of 7, but had not been exposed in the womb were only 20% more likely to have a problem, than unexposed children who do not use a phone.
Professor Kheifets said "While there's no reason for pregnant women to avoid using their cell phones, precautionary measures might be warranted."