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The findings hold regardless of cultural background, say researchers
They suggest the pain caused by circumcision may be partly to blame
This may in turn affect how the brain develops and reacts to stress
Study looked at 340,000 boys born in Denmark between 1994 and 2003
But experts have urged caution over the 'extremely speculative findings'
By ANNA HODGEKISS FOR MAILONLINE
PUBLISHED: 19:06 EST, 8 January 2015 | UPDATED: 06:58 EST, 9 January 2015
Circumcision before the age of five can double a boy's risk of developing autism, controversial research suggests.
Scientists believe the finding may be linked to stress caused by the pain of the procedure.
The study of more than 340,000 boys in Denmark found that circumcision raised the overall chances of an autism spectrum disorder before the age of 10 by 46 per cent.
But if circumcision took place before the age of five it doubled the risk.
Circumcision also appeared to increase the likelihood of boys from non-Muslim families developing hyperactivity disorder.
Read more: http://www.dailymail.co.uk/health/ar...#ixzz3OMxW6hIi
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