Seven Deadly Sins

The Biology of Being Human

By: Guy Leschziner

Narrated by: Guy Leschziner

Length: 11 hrs and 29 mins

Publisher's summary

'Absolutely fascinating and has the power to change the way you look at the world' Steven Bartlett

'The heir to Oliver Sacks' David Baddiel

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.

©2024 Guy Leschziner (P)2024 Harper Collins Publishers

Critic reviews

‘Thought-provoking, fascinating, compelling – Leschziner delves into the psychology, psychiatry and neuroscience of harmful behaviours and asks: can we ever really be free to choose how we behave? His thesis is compelling: if we can understand ourselves better, and particularly the darker aspects of our psychology, we can hope to make the world a better place’

Professor Alice Roberts, author of Crypt

'A riveting exploration of the science behind why humans engage in behaviour that harms themselves and others'

Jonathan Kennedy, author of Pathogensis