The Ideological Brain

How Rigid Beliefs Harm Our Minds & Bodies – And Why It Matters

Leor Zmigrod author

Format:Paperback

Publisher:Penguin Books Ltd

Published:5th Feb '26

Should be back in stock very soon

This paperback is available in another edition too:

The Ideological Brain cover

‘Fascinating, insightful, lucidly and entertainingly written’ A. C. GRAYLING, author of The History of Philosophy


‘Extraordinary, eye-opening, startlingly original’ CASS R. SUNSTEIN, co-author of Nudge

‘Filled with insightful findings, this book shows that ideological extremism and polarization are not just problems to fret about but puzzles that can be studied and understood’ STEVEN PINKER, author of The Better Angels of Our Nature

How do our brains shape the ideologies we choose? And could our most cherished beliefs ultimately harm our brains and bodies?

In The Ideological Brain, Dr Leor Zmigrod argues that when we believe passionately and extremely in an ideology, it is not only our political opinions that are changed – our entire brain can be transformed too. Drawing on cutting-edge research, Zmigrod reveals how rigid belief systems transform the way we think, act and interact with others, making us less sensitive, less adaptable and less free.

Guiding you through innovative experiments, Zmigrod uncovers the deep and surprising connections between your political beliefs and the biology of your brain, exposing why some of us are more likely to gravitate towards rigid ideologies than others. She reveals the complex interplay between the psychological, neurobiological and social factors affecting our ideological choices, and carves a hopeful way forward, explaining how we can keep our minds open and free in the face of extreme ideologies.

Eye-opening, provocative, and unforgettable, The Ideological Brain is a groundbreaking book that challenges you to resist black-and-white thinking and reassess your closest convictions.
‘Lucid, eloquent, timely’ ADAM PHILLIPS, author of Missing Out

‘Deeply fascinating and beautifully written’ JULIA EBNER, author of Going Dark

‘One of the most brain-frying books I have read in an incredibly long time.’ JOHN BURN-MURDOCH, chief data reporter, Financial Times

‘Leor Zmigrod’s hotly awaited debut…uses new research to show that polarised thinking isn’t something that just floats through the mind: it changes our entire neural architecture’ THE TELEGRAPH, BEST BOOKS OF 2025 * The Telegraph *
'Zmigrod reveals the science behind dogma and shows us how to nurture cognitive flexibility instead’ THE GUARDIAN, BRILLIANT BOOKS IN READ IN 2025 * Guardian *
'Massively important...Zmigrod is a joyful and compelling writer' -- Tom Calver * The Sunday Times *
‘If I had to pick one, Zmigrod’s would be my book to watch out for in 2025’ -- Simon Ings * New Scientist *
'Filled with insightful findings, this book shows that ideological extremism and polarization are not just problems to fret about but puzzles that can be studied and understood' -- Steven Pinker, author of The Better Angels of Our Nature
'An extraordinary, eye-opening and startlingly original book, showing what ideology does to the human brain, and casting a bright new light on the sources and nature of dogmatism, ideology and open-mindedness. Packed with insights, this is a remarkable achievement' -- Cass R. Sunstein, co-author of Nudge
'Fascinating, insightful, lucidly and entertainingly written, Zmigrod's account illuminates the debate about the nature of ideology and the power it exerts, by bringing cognitive neuroscience – in fact, an intriguing development of it: ‘political neuroscience’ – to bear on both. An educative, rewarding, troubling, but ultimately hopeful, book' -- A. C. Grayling, author of The History of Philosophy
'The Ideological Brain is a deeply fascinating and beautifully written investigation of the human mind‘s susceptibility to radical ideologies. Leor Zmigrod elegantly weaves together her ground-breaking research with vivid storytelling. The book is a treasuretrove of surprising insights: from the epigenetics of extremism to the impact of stress on rigid thinking, and the role of parenting styles in cultivating authoritarian attitudes.' * Julia Ebner, author of GOING DARK *
'A fascinating and important exploration of the causes of cognitive rigidity and of the factors that make some people more vulnerable to it than others. Leor Zmigrod draws on neuroscience, psychology and philosophy in her quest to understand why and how some people are drawn to authoritarian thinking and even to terrorism while others are able to question and resist dominant ideologies' -- Nigel Warburton, author of A Little History of Philosophy
'This remarkable book tells us something fascinating and heartening about the neuroscience of our inflexibilities and our dogmatisms. Lucid and eloquent, The Ideological Brain couldn't be more timely' -- Adam Phillips, author of Missing Out

ISBN: 9781405975148

Dimensions: 197mm x 129mm x 23mm

Weight: 238g

336 pages