After years of delivering Brain Smart across prisons in England and Scotland, certain things have become clear. About what people in custody actually need. About what works and what does not. And about what happens when knowledge reaches people who have never had access to it before.

It starts with the same question, everywhere

In every prison, in every session, the same thing happens at some point. Someone in the room says some version of: why has nobody ever explained this to me before?

It is not said with anger. It is said with something closer to relief. The idea that the brain has a logical, understandable reason for why it sometimes makes life feel impossible is not something most people in custody have ever been offered. They have been given diagnoses, medication, behaviour management plans. They have rarely been given an explanation.

That is what Brain Smart offers. Not therapy. Not clinical intervention. An explanation. And in the environments we work in, that explanation lands with a force that still surprises us, even after all this time.

What custody does to the brain

Before we talk about what works, it is worth being honest about the environment. Prison is, by design, a high-threat environment. Autonomy is removed. Relationships are disrupted. The social dynamics are complex and often volatile. Uncertainty is a constant.

For a brain that is already primed to scan for threat, custody is an extraordinarily activating place. Many people arrive having spent years, sometimes decades, in threat mode. Trauma, poverty, instability, loss. The prison environment does not reduce that activation. For most people, it compounds it.

This matters because it tells us something about what meaningful support in custody actually needs to look like. It needs to meet people where they are, not where we would like them to be. It needs to be accessible when concentration is difficult and trust is low. And it needs to feel relevant to the life being lived, not the life someone else imagines.

What we have found works

The Brain Smart approach strips out clinical language entirely. There are no diagnoses, no conditions, no labels. There is a brain, and there are reasons why it behaves the way it does. That framing alone changes the quality of engagement.

When someone understands that the emotional reactions they have spent a lifetime fighting are not evidence of madness or weakness but the entirely logical output of a brain responding to threat, something shifts. The shame reduces. The curiosity increases. And curiosity is the beginning of everything.

We have also found that the peer element is not a nice addition. It is central. The people delivering and championing Brain Smart inside prisons are not outsiders. They are people who have been through the same experiences, who carry the same credibility, and who can say with authority: this changed something for me.

What Mental Health Ambassadors change

The Mental Health Ambassador programme that has grown out of Unlock My Life is one of the things we are most proud of. Participants who engage deeply with Brain Smart can go on to become trained peer supporters, visible within their wing or establishment, trusted by people who would not approach formal provision.

What this creates is not a programme that runs for a few weeks and then disappears. It creates a sustained shift in the environment. People who understand themselves better. People who can support others. A culture, however fragile, where mental health is something that can be talked about.

What we still do not know

We are honest about the limits of what we can claim. The evidence base for peer-led mental health education in custody is growing but not yet comprehensive. We know what we see in rooms. We know what participants tell us. We know what prison staff and governors report. We do not yet have the long-term outcome data that would let us say with full confidence what happens years after someone completes the programme.

That work is ongoing. And the honest truth is that even without it, we would keep going. Because the question is not whether Brain Smart is better than doing nothing in these environments. It clearly is. The question is how we build the evidence to make the case for doing more.

What 35 prisons has taught us

It has taught us that the setting does not determine the capacity for change. We have seen genuine transformation in some of the most constrained environments imaginable. It has taught us that knowledge is not a luxury. For many people in custody, it is the first time anyone has offered them a framework for understanding their own experience. And it has taught us that when you meet people with honesty and respect, without judgement and without clinical distance, they respond.

That sounds simple. In practice, in a prison, it is anything but. And that is exactly why it matters.