Half of all homeless people may have had traumatic brain injury

Experts say TBI could be consequence or cause of homelessness

Half of all homeless people may have suffered a traumatic brain injury at some point in their life, according to new research - which experts say could be either a consequence or even the cause of their homelessness.

Traumatic brain injury is sudden damage caused by a blow or jolt to the head, which can be caused by a motor accident, a fall or an assault. Sometimes it can cause long-term damage to the brain, leading to neurological and psychiatric disorders.