What clinical psychoneuroimmunology taught me about dying well
Most people think dying well means dying painlessly.
Clinical Psycho-Neuro-Immunology suggests something more interesting: dying well means dying with an immune system that isn't being sabotaged by your own psychology.
That's a provocative statement, so let me unpack it.
The mind is not separate from the immune system
For most of the 20th century, immunology treated the immune system as an autonomous defence force, something that operated independently of thoughts, feelings, and lived experience. That view has been comprehensively overturned.
We now know that the brain and the immune system are in constant bidirectional communication. The hypothalamic-pituitary-adrenal (HPA) axis, the sympathetic nervous system, and the vagus nerve all provide direct pathways through which psychological states modulate immune function.
Clinical Psycho-Neuro-Immunology, cPNI, is the discipline that maps these connections and applies them clinically. It studies the psycho (mind, emotions, meaning), the neuro (nervous system, stress response, neurotransmitters), and the immunology (immune cells, cytokines, inflammatory markers) as a single integrated system.
I'm currently completing my MSc in cPNI at the University of Granada. I came to it through a very personal route: in 2021, I was diagnosed with an aggressive brain tumour.
Why "stay positive" might be the worst advice in oncology
When you receive a cancer diagnosis, you enter a social script. People tell you to be brave, to fight, to stay positive. They tell you that attitude is everything.
The intention is kind. The immunology is concerning.
Chronic psychological stress, which includes the stress of performing emotions you don't feel, elevates cortisol through sustained HPA axis activation. Cortisol suppresses the activity of natural killer (NK) cells, which are among the body's primary defences against tumour cells. It also shifts the T-helper cell balance from Th1-dominant (cell-mediated immunity, which targets tumours) toward Th2-dominant (antibody-mediated immunity, which is less effective against solid tumours).
In plain English: the well-meaning advice to "stay positive" can trigger exactly the stress response that undermines the immune function you need most.
This doesn't mean that positive emotion is harmful. Genuine joy, authentic connection, and real laughter all have measurable immune benefits. The problem is performed positivity — the smile you put on for visitors, the "I'm fine" you repeat until you almost believe it, the constant emotional labour of making other people comfortable with your diagnosis.
That performance is a form of chronic stress. And chronic stress is immunosuppressive.
What I did instead: a conversation with Death
When I received my diagnosis, the advice felt wrong, and cPNI gave me the scientific framework to understand why.
Instead of performing bravery, I did the opposite. I sat with the full reality of my mortality. I stopped pretending. And I started a practice that I now call Talk with Death.
It's not therapy, though it can complement therapy. It's not meditation, though it uses stillness. It's not positive psychology, it's often the opposite. It's a structured practice for establishing Death as an advisor rather than an enemy.
Death's first instruction to me was: "Calm down or you won't be able to understand me." His second: "Stop performing for everyone." His third: "You don't need all this stuff, where you're going. Pack lightly."
Those three instructions — regulate your nervous system, drop the performance, let go of what doesn't matter — are, from a cPNI perspective, a near-perfect prescription for reducing allostatic load and restoring immune homeostasis.
Calming down reduces HPA axis activation. Stopping the performance eliminates the chronic stress of emotional suppression. Letting go of what doesn't matter removes the psychological burden that keeps the stress response chronically elevated.
I didn't know the science when Death first said these things. I learned the science afterwards. The alignment was remarkable.
What dying well actually looks like
I've now turned this practice into a structured programme called Talk with Death. It's a three-week intensive for cancer patients (and increasingly, anyone facing serious diagnosis) who are ready to stop performing and start engaging honestly with mortality.
The programme works in small pods of four people. Over three weeks, participants establish Death as an advisor, dismantle their performed identity in the presence of witnesses, and reconstruct their values around what actually matters.
It includes cemetery visits. Death Party planning. Pod work with people going through the same process. And it's grounded in cPNI, because understanding why honesty helps your immune system makes the practice feel less esoteric and more grounded.
Dying well, from a cPNI perspective, doesn't mean dying happily. It means dying with psychological coherence, a state in which your emotional reality and your expressed reality are aligned, your nervous system isn't in chronic overdrive, and your immune system has the best possible conditions to do its work.
Some people who do this practice find that their relationship with their disease changes. Some find that their quality of life improves dramatically. Some find that the people around them start being honest too, and the relationships transform.
I'm not promising cures. I'm not claiming that talking to Death will shrink a tumour. I'm saying that the science of psychoneuroimmunology tells us that your psychological state shapes your immune function, and that engaging honestly with mortality is one of the most powerful ways to change your psychological state.
Who this is for
If you've been diagnosed with cancer (particularly within the last 6 months to 5 years), if you're between 25 and 60, if you're sick of everyone turning your cancer into their therapy session, and if you're ready to face what you've been avoiding, this might be for you.
If you're not ready, that's fine too. Readiness matters.
I've written a free 3-minute assessment at talkwithdeath.com that can help you gauge whether this practice is right for you right now.
And I'm writing a book, Talk with Death: A Practical Guide to Mortality Partnership, that will make this methodology available to anyone who wants to use it.
I'm Benjamin Dives. Brain tumour patient. MSc student in clinical Psycho-Neuro-Immunology. Based in Sheffield. Highly allergic to the phrase "Everything happens for a reason."
If you have questions, you can book a 30-minute consultation at talkwithdeath.com, or just reply to this post. I read everything.
Benjamin Dives is studying a Masters in clinical Psycho-Neuro-Immunology (cPNI) at the University of Granada. Diagnosed with an aggressive brain tumour in 2021, he created Talk with Death, a programme for cancer patients who want to transform their relationship with mortality. He is based in Sheffield, UK.