A Public Policy Failure Rooted in Brain Health
Chronic homelessness is usually debated in terms of housing supply, addiction and mental health services, or the cost of emergency response. A commentary newly published in the Canadian Medical Association Journal contends that one of the most consequential drivers of the crisis is also one of the least discussed: cognitive impairment. The peer-reviewed piece, written by Dr. Sumantra "Monty" Ghosh, an addiction medicine specialist and associate professor at the University of Alberta in Edmonton, frames chronic homelessness in Canada as both a human tragedy and a failure of public policy — and pins much of that failure on a persistent blind spot.
Ghosh's central argument is that many people living without stable housing carry cognitive deficits severe enough to undermine independent living, yet the systems designed to help them are rarely built to detect or accommodate those deficits. When the underlying brain injury, memory loss or impaired executive function goes unrecognized, housing placements collapse, tenancies fail, and people cycle back to shelters, hospitals and the street.
What Drives Cognitive Impairment Among Unhoused People
The commentary points to a dense cluster of causes that disproportionately affect people experiencing homelessness. They are not isolated risk factors; they overlap, compound and often begin long before someone loses housing. According to the piece, the contributing causes include:
- Fetal alcohol spectrum disorder, which can shape cognition from before birth
- Adverse childhood experiences, including trauma and instability early in life
- Traumatic brain injury, which is common in this population
- Injuries linked to substance use disorders
- Mental health conditions that impair memory, executive function and comprehension
Taken together, these pathways produce a population in which thinking, planning, remembering and self-regulating can be profoundly difficult. The commentary's author suggests that the resulting impairments are not marginal details of the homelessness crisis — they are a structural feature of it.
Why Conventional Responses Fall Short
Canada's dominant response to chronic homelessness has been Housing First, an approach that prioritizes moving people directly into permanent housing without preconditions such as sobriety or treatment completion. Ghosh does not dismiss the model, but he argues that it cannot carry the entire load on its own when the people being housed need more than a key and a lease. A blanket approach, applied uniformly regardless of cognitive capacity, leaves those with the most significant impairments unsupported and vulnerable to losing their housing again.
"An important reason for the latter is insufficient recognition that many people who are homeless have cognitive dysfunction severe enough to limit their ability to live independently," Ghosh writes, referring to the policy failure he describes. Without that recognition, he argues, most conventional responses to the crisis will keep failing, no matter how well funded or well intentioned they are.
A Dementia-Level Standard of Care
The commentary's most striking proposal is a shift in the standard of support. Rather than designing services around the average person experiencing homelessness, Ghosh argues that care for those with cognitive impairment should approximate what is offered to people living with dementia. That means a fundamentally more intensive model, including:
- Around-the-clock supervision and safety monitoring
- Brain rehabilitation aimed at recovering or compensating for lost function
- Structured daily supports that extend well beyond conventional interventions such as Housing First
- Routine screening to identify cognitive impairment and match people to appropriate care
This is a demanding standard, and the commentary does not present it as inexpensive or simple. But its logic is straightforward: if a person's brain cannot reliably manage medication, appointments, money or a rental agreement, then support that ignores that reality is not really support. It is an administrative gesture that sets the person up to fail.
Dementia care is instructive precisely because it is built around the assumption of diminished capacity. It provides supervision, environmental structure and rehabilitation rather than expecting the individual to navigate complex systems alone. Ghosh suggests that people experiencing chronic homelessness with significant cognitive impairment need the same kind of scaffolding — delivered in a way that respects their autonomy while acknowledging their limitations.
The Case for Routine Screening
None of this is possible without identification. The commentary places heavy emphasis on routine screening as the gateway to better outcomes, because cognitive impairment in homeless populations is frequently invisible. It can be mistaken for stubbornness, non-compliance, intoxication, apathy or treatment resistance. Clinicians and frontline workers may see the behavioral consequences without ever assessing the underlying cause.
Systematic screening would allow services to distinguish between people who need modest assistance and people who need intensive, disability-informed care. That distinction matters for resource allocation, for program design and for individual dignity. As the commentary frames it, this group has complex needs that require a correspondingly complex, coordinated response rather than a single standardized intervention.
Reframing the Crisis
The commentary's concluding argument is a call for conceptual change. Ghosh writes that reframing chronic homelessness as a cognitive impairment crisis is essential, warning that if this foundational driver remains unaddressed, many standard responses will continue to disappoint. He points to an estimate that roughly half of people experiencing chronic homelessness have substantial brain injuries — a figure that, if accurate, reframes the issue from a minority concern to a defining feature of the population.
The potential payoff cuts in two directions. Better identification and dementia-level support could improve outcomes for vulnerable unhoused people, offering stability that conventional housing alone has not delivered. At the same time, the commentary suggests that wider communities could benefit as well, if reduced cycling through emergency rooms, shelters, and the justice system follows from more appropriate care.
What the commentary does not offer is a ready-made funding formula or a blueprint for implementation. Its contribution is diagnostic: it names cognitive impairment as a driver that has been hiding in plain sight and asks policymakers to design around it instead of past it. For a crisis that has resisted decades of conventional intervention, that reframing may be the most practical proposal on the table.
This article is based on reporting by Medical Xpress. Read the original article.
Originally published on medicalxpress.com
