On any given night, 60,000 people in Canada will go to sleep homeless. Research estimates that more than half of them have had a brain injury at one point in their lives, most of them being injured before becoming homeless. An estimated 22.5 per cent live with moderate or severe brain injuries, a rate nearly 10 times higher than the general population.
Several avenues can lead a person to experience homelessness, including abuse, criminality and other adverse life events, all of which can be interrelated with brain injury. For example, experiencing a brain injury can lead to the onset of a mental health or substance use disorder, impulsivity and aggression, which can, in turn, lead to unemployment, family breakdown or other known causes of homelessness.
“Acquired brain injury” refers to brain damage after birth, either from external physical force (called traumatic brain injury) or internal problems like stroke or infection (non-traumatic). The more severe the brain injury, the greater the impairment, with cognitive abilities often being the most affected.