Seven Deadly Sins: The Biology of Being Human

'Has the power to change the way you look at the world' Steven Bartlett 'The heir to Oliver Sacks' David Baddiel A FINANCIAL TIMES BEST BOOK OF 2024 AN INDEPENDENT BOOK OF THE MONTH Gluttony. Greed. Sloth. Pride. Envy. Lust. Anger. These are the seven deadly sins, the vices of humankind that define immorality, the roots of all evil in the world. Or so some believe. But do these sins really represent moral failings, or are they simply human functions that aid us? Are they just the result of how our bodies, psyches, and brains in particular, are wired? This new book by Dr Guy Leschziner, a professor of neurology and sleep medicine, explores the underlying nature of the seven deadly sins, their neuroscientific and psychological basis, their origin in our genes and crucially how certain medical disorders give rise to them. Drawing on his clinical practice, we meet individuals whose physical and psychological conditions have given rise to these sins, where brain injury or other experiences have sparked ‘immoral’ actions. He explores how illness can simply expose what lies within us and investigates how the origins of these traits lie in evolutionary imperatives to preserve the wellbeing of the tribe. Perhaps, he suggests, these character traits are less of a moral question and more biological, which raises fundamental issues of responsibility and blame in the face of ‘sin’. Combining cutting-edge science placed in the context of real-life experience with patients, the book reexamines where the boundaries between normal human nature, pathology and sin are drawn. And, most importantly, whether these hard-wired traits truly represent sin, or simply the intensity of our intrinsic desire to survive and thrive. In Seven Deadly Sins, Leschziner delves into the anatomy of our moral compass, using neuroscience and neuropsychology to dissect the roots of our actions. He challenges the traditional understanding of sin, suggesting that these immoral actions may be more closely tied to our health and physiological functions than we realise. For fans of Suzanne O'Sullivan (The Sleeping Beauties), Matthew Walker Phd (Why We Sleep), Anil Seth (Being You), Richard Dawkins (Outgrowing God), and Lisa Feldman Barrett (How Emotions Are Made). HarperCollins 2024