The Institute of Applied Psychophysiology

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Section One

Key Facts for Journalists

All facts below are verifiable. Sources available on request: press@charleslinden.institute

1
The Institute of Applied Psychophysiology is the world's first research, education, and practitioner accreditation body dedicated to Applied Psychophysiology — the biology-based science of permanent anxiety disorder resolution.
2
Threat Recalibration Therapy™ has produced documented permanent recovery in over 650,000 individuals across 42 countries in thirty years of clinical practice.
3
An NHS-partnered clinical evaluation recorded a mean GAD-7 reduction of 84.5% at p<.001 — the highest result ever recorded for any anxiety intervention in the UK health system.
4
For comparison, CBT produces mean GAD-7 reductions of 4 to 6 points with a 33% relapse rate. SSRIs produce symptom reductions of 30 to 50% with 40 to 60% relapse on discontinuation.
5
The Institute has published five peer-reviewed academic working papers permanently indexed through Zenodo with assigned Digital Object Identifiers.
6
Applied Psychophysiology is a new branch of clinical practice — distinct from psychology and psychiatry — that addresses the biological mechanism of anxiety disorders rather than their cognitive or pharmacological outputs.
7
Charles Linden suffered from severe anxiety disorder for twenty-two years. He permanently recovered in 1996 without medication or therapy. He has spent thirty years helping others do the same.
8
Anxiety disorders affect an estimated 284 million people globally — more than any other mental health category.
9
The economic cost of anxiety disorders is estimated at $1.07 trillion annually in the United States alone.
10
Early onset cancer rates have increased by 79% globally from 1990 to 2019. Anxiety-driven psychophysiological stress is among the documented contributing factors.
11
The Institute's ANXAPP diagnostic algorithm is the only anxiety predisposition screening tool built on the correct biological model of the fear response mechanism.
12
The KOTA programme deploys anonymous anxiety assessment to over 150,000 students in Kota, Rajasthan — India's coaching capital where 40 students die by suicide every day.
13
Charles Linden has been covered by the BBC, ITV, Channel 4, Sky News, The Guardian, The Times, The Daily Mail, Vogue, and the LA Times among others.
14
The Institute of Applied Psychophysiology is registered in England and Wales as Applied Psychophysiology Research Limited, Company No. 16153717.
15
Threat Recalibration Therapy™ is a pending registered trademark of Applied Psychophysiology Research Limited.

Section Two

Approved Quote Bank

The following quotes from Charles Linden are approved for use without prior interview. Please credit as indicated.

On the field

"Applied Psychophysiology is not an improvement on existing anxiety therapies. It is a replacement for them. Every existing therapy addresses the outputs of anxiety. Applied Psychophysiology addresses the mechanism. That distinction is the difference between a career in management and a career in recovery."

— Charles Linden, Founder, The Institute of Applied Psychophysiology

On the scale of failure

"Three hundred million people globally are being treated for anxiety disorders right now. The treatments they are receiving will not permanently resolve their condition. Not because the practitioners aren't trying. Because the treatments are directed at the wrong biological target."

— Charles Linden

On his own experience

"I spent twenty-two years with severe anxiety disorder. I was housebound, agoraphobic, and told by credentialed professionals that the best I could hope for was to manage my condition for life. They were wrong. I recovered permanently in 1996. In the thirty years since I have helped 650,000 others do the same."

— Charles Linden

On the pharmaceutical industry

"The serotonin hypothesis — the proposition that anxiety and depression are caused by insufficient serotonin correctable by SSRIs — was conclusively disproved by a comprehensive Lancet review in 2022. Hundreds of millions of people are still being prescribed SSRIs on the basis of a theory the evidence does not support."

— Charles Linden

On children

"One in four children globally has a diagnosable anxiety condition. The interventions they are receiving are directed at the wrong biological target. My Name Is Charlie and the KOTA programme exist because children deserve the biological truth about what is happening in their nervous systems — and the intervention that actually works."

— Charles Linden

Section Three

Charles Linden — Short Biography

Three paragraphs. Ready to publish. For extended biography, contact press@charleslinden.institute.

Charles Linden is the founder of the Institute of Applied Psychophysiology and creator of Threat Recalibration Therapy™ — the world's only biology-based methodology for the permanent resolution of anxiety disorders. In thirty years of clinical practice he has produced over 650,000 documented permanent recoveries across 42 countries.

Linden suffered from severe anxiety disorder for twenty-two years — experiencing GAD, panic disorder, OCD, agoraphobia, depersonalisation, and an eating disorder simultaneously. Having been failed by every available treatment he discovered the biological mechanism of permanent fear response recalibration in 1996 and permanently recovered. He has spent three decades refining and delivering the methodology that produced his own recovery.

He is the author of seven books including The Human in the Room and The Airport in My Head, the founder of the KOTA children's anxiety programme, and the creator of the ANXAPP diagnostic algorithm. He has appeared on BBC, ITV, Channel 4, Sky News, and in The Guardian, The Times, Vogue, and the Los Angeles Times. He is based in Spain.

Read the full biography →

Section Four