Brain scans reveal evidence of five subtypes, raising prospect of tailored approaches to improving sleep
The sluggish start to the day, the struggle to concentrate on everyday tasks and the lethargy that comes with just a few hours sleep, these are the symptoms that will be familiar to anyone who suffers with insomnia.
But according to research, not all sleepless nights are the same. Brain scans have revealed evidence for distinct forms of insomnia, each with an associated pattern of neural wiring.
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