How political ideology affects the brain

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In The Ideological Brain Leor Zmigrod studies the impact of political ideology on the makeup and shape of the brain. She found that those on the political extremes, as well as those with the most dogmatic beliefs, display more cognitive rigidity. The historian John Rees focuses on the small group of firebrand parliamentarians at the heart of the English Civil Wars. The Fiery Spirits describes how the radical republicans influenced more moderate MPs and led to the defeat, and execution, of Charles I. 2025 is the centenary of the birth of Margaret Thatcher and fifty years since she became the first woman to lead a major political party in the UK. The political commentator and broadcaster Iain Dale publishes a biography of her later this year, and questions the role of ideology within Thatcherism. Producer: Katy Hickman