Children whose mothers frequently spoke on their mobile phones while pregnant are more likely to be hyperactive.

A study reveals children aged five to seven are 28 per cent more likely to suffer if their mothers spoke on a mobile four times, or for over an hour, a day while expecting, reports Daily Mail.

Children whose mothers never used a mobile phone while pregnant have the lowest risk of behavioural or emotional problems.

This may be due to the radio waves, known as electromagnetic radiation, given off by mobile phones, which has uncertain health implications.

Scientists from across the world analysed over 83,884 mother-children pairs based in Denmark, the Netherlands, Norway, Spain and Korea from 1996 to 2011.

Although the results raise concerns, experts warn they should be interpreted with caution. “I would say interpret these results with caution, and everything in moderation,” said lead author Laura Birks.

Dr. Robin Hansen, pediatrician, University of California said: ‘Is it something about the cellphone itself? Is it something that impacts your parenting behaviour?

Is it the electronic signals that go through your brain and your body or how it changes your interactions with your child postnatally?’

She adds children who feel ignored by their parents may be excessively active in order to get the attention they crave.

Dr Hansen said: ‘It’s not until you cry or you throw something or make a lot of noise, that your parents shift their attention from the cellphone to you.

‘It reinforces hyperactive, attention-getting behaviour.’

Maybe it is time we went back to the good old land line?

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