SCIENTISTS have discovered that water plays a key role in causing an autism condition affecting one in 100,000 girls.
The insight into the cause of the neurological disorder Rett's syndrome has been uncovered in a study at Edinburgh University.
The autism spectrum disorder is known to be caused by a protein, called Mecp2, which blocks a gene in human DNA and prevents it from functioning.
Researchers discovered that Rett's syndrome is caused by the Mecp2 protein interacting with water trapped around the DNA rather than reacting directly with the DNA itself.