Corporate Wellbeing · Fleur Borrelli BSc, MSc cPNI
Your team's performance starts with their biology
Fatigue, brain fog, low mood and poor concentration are physiological signals that you are under pressure and they are addressable. The In-Sync Organisation brings clinical science to your workplace.
Why this matters now
Individual intelligence has been declining since 1975.
Loneliness is now a medical condition.
Research measuring cognitive function across children, adolescents, and adults shows a consistent downward trend since 1975. Each generation is no longer performing better than the one before and scientists believe the sharp rise in loneliness and social isolation is directly connected.
Loneliness is not a lifestyle issue. It is a neuro-metabolic-inflammatory disease. Social disconnection activates the same inflammatory pathways as physical injury and that inflammation changes how the brain processes, remembers, and makes decisions.
Meanwhile, people are navigating unprecedented levels of cognitive load, chronic low-grade stress, and a culture that treats exhaustion as ambition. The cost to organisations is not just productivity. It is the loss of the very thing that makes human teams exceptional: collective intelligence.
“The human brain grew for 2.5 million years because of social connection. Connection allowed us to move from individual intelligence to collective intelligence, and that is what made us extraordinary. We are now running that mechanism in reverse.”
The science
What chronic stress does to a working brain
20%
of the body's total oxygen supply is consumed by the brain — making it uniquely vulnerable to metabolic and inflammatory stress
3Ă—
more neurons than our closest primate relatives — which means our brains are extraordinarily expensive to run and repair
1975
the year individual cognitive performance began its measurable decline across every age group studied
3
selfish systems — brain, immune, and metabolic — that compete for the body's resources under sustained stress, at the cost of everything else
The cPNI framework
Three integrated systems that should be in synchrony.Â
Clinical psychoneuroimmunology (cPNI) is a translational medical discipline that examines how the nervous system, immune system, and metabolic system interact — and compete — in the context of modern working life. When all three are running well, your people think clearly, recover fast, and sustain performance. When one becomes “selfish”, pulling resources away from the others, the whole system pays the price.
Most workplace wellbeing programmes address symptoms: stress management workshops, step challenges, fruit bowls. We address the underlying biological mechanisms that determine whether your people have the cognitive and physiological capacity to perform.
The Selfish Brain
Under stress, the brain prioritises its own survival; pulling glucose from muscles and organs. Short-term this is adaptive. Chronically, it drives cortisol resistance, poor sleep, and decision fatigue.
The Selfish Immune System
A chronically activated immune system consumes the same glucose the brain needs for focus and memory. Loneliness, social exclusion, and sustained low-grade stress are among the most potent immune activators we know of.
The Selfish Metabolism
When energy regulation breaks down, the brain's mitochondria — the engines of every neuron — cannot produce enough ATP to maintain function. The result is fatigue, brain fog, weight gain and reduced capacity to think, plan and connect.
What we deliver
Programmes built on clinical science, not generic wellness
Every engagement is designed around the actual mechanisms driving your team's challenges, not a standard package rebranded for your industry. Fleur brings 20+ years of clinical experience and an MSc in Clinical Psychoneuroimmunology to each programme.
Who this is for
For organisations that want real results from wellbeing investment
About Fleur
One of a small number of clinical psychoneuroimmunologists in the UK
Fleur Borrelli holds a BSc in Nutritional Medicine and studying for an MSc in Clinical Psychoneuroimmunology from the Pruimboom Institute. She has over 20 years of clinical experience working at the intersection of neuroscience, immunology, endocrinology, and nutritional medicine.
She is the co-author of The In-Sync Diet with actress Glynis Barber, and helps deliver Intermittent Living immersive experiences through the Pruimboom Institute in Spain. Her clinical work is grounded in a single conviction: that symptoms are biological messages, not problems to be suppressed — and that understanding the mechanism behind them is the fastest route to genuine resolution.
She brings the same rigour to corporate programmes that she brings to her clinical practice: no generic protocols, no superficial fixes, and no expensive supplement lists.
Let's talk about what your team needs
Every engagement starts with a conversation. Tell us what you're dealing with — we'll tell you what's possible.