About Dr Kat
Meet
Dr Kat Aguilera
Dr Kat Aguilera grew up around frontline work long before she ever treated anyone for it. Her grandfathers both served in the military and her father spent his entire career in the prison service, the last six years of it as governor. She learned early what that kind of work does to a person, and what it does to the family around them, in the way children usually learn these things: nobody explains it, you simply notice. That was the first education, and it shaped everything that came after. The second was more personal. She has sat on both sides of the trauma therapy room, and it means she never underestimates what it costs someone to walk through the door.
Where Early Intervention Came From
Dr Aguilera joined the prison service in 2011 as an assistant psychologist, delivering group interventions to men whose substance use, she came to realise, was serving a purpose for them. The protocol taught coping strategies without addressing what people were coping from, and it was her first lesson in the difference between managing a problem and treating it.
From there, she moved into the NHS Early Intervention in Psychosis Service, and that is where the principle took hold properly. Her Master's research was an economic evaluation comparing early intervention against standard community care. She ran the numbers herself, and what they showed has shaped every argument she has made since: early intervention costs more upfront, but across a three-year care cycle standard care worked out substantially more expensive, driven largely by inpatient admissions. Intervening early was not only the humane option. It was the cheaper one.
The clinical work taught her the other half. In psychosis services, deterioration almost never arrived without warning. People stopped sleeping, stopped eating and withdrew when they were breaking down. Teams worked with patients to map those changes as green, amber and red, so that a shift could be recognised and acted on before it became a crisis. Long before she gave her WARNS framework a name, Dr Aguilera was working with early warning signs.
What she found
Dr Aguilera has led an NHS psychology service through a sustained period of operational crisis, holding her team together and intervening with individuals before they reached breaking point. It remains the clearest illustration she has of what early intervention makes possible, and it is the reason she now argues for it publicly. Alongside her NHS work came the trauma work that now defines her practice. She worked with police officers in her private practice, including those in digital forensics and child safeguarding teams, the people who review the worst material there is, day after day, then categorise it and go home to their families. She later left the NHS and began working with military veterans through Combat Stress. The same pattern kept arriving from different directions, in different uniforms, missed in the same ways. People rarely break suddenly, particularly in operational roles. They deteriorate gradually, over years, while those around them read the signs as tiredness, attitude or a difficult patch. Veterans wait an average of fourteen years after leaving service before asking for help (Source: Combat Stress). In that time, the nervous system adapts, the trauma responses embed, and what might have resolved in months becomes the work of years. Dr Aguilera spent a long time trying to change this from inside organisations. Some leaders understood it immediately and gave her room to build something. More often, she met strained budgets, constant turnover and a system designed around crisis treatment rather than prevention, which is difficult to watch when you already know how the story ends. So, she began making the argument publicly instead.
The Work Now
Dr Aguilera now speaks to organisations about what psychological decline looks like in the months and years before it becomes a crisis, and what it costs to keep missing it. She delivers intensive trauma-focused therapy programmes that condense months of treatment into weeks. She works with police forces and occupational health teams to promote awareness and early intervention, as well as continuing her work with military veterans through Combat Stress. She also co-founded Vanguard CIC to develop and advance research on intensive trauma treatment for veterans.
Dr Aguilera's approach in the therapy room is the same as her approach on stage. Direct, without clinical distance, and without any interest in pretending the work is comfortable. She trains Brazilian jiu-jitsu and lifts weights for the same reason, believing a strong mind needs a strong body behind it, and that it would be unfair to ask people to sit down and face the hardest moments of their lives while avoiding things that are uncomfortable or difficult herself.