Insomnia definitely not just psychological

Seven risk genes for insomnia have been discovered by a team of international researchers, and they say this proves once and for all that it is not a purely psychological condition.

The discovery marks an important step towards unravelling the biological mechanisms that cause a predisposition for insomnia.

Professor Eus van Someren, a Dutch researcher who co-authored the study, is hopeful the findings will also pave the way towards new treatment methods and better recognition of the condition.

"As compared to the severity, prevalence and risks of insomnia, only few studies have targeted its