Sleepwalking, Insomnia, Circadian Rhythms: The Incredible Science of Sleep — Dr. Guy Leschziner
Update: 2025-10-16
Description
In this episode, I speak with Professor Guy Leschziner, a consultant neurologist and leading sleep specialist who has spent over a decade as the clinical lead at one of Europe's largest sleep disorder centers.
Drawing on insights from neuroscience, clinical practice, and evolutionary biology, Guy explores the fascinating world of sleep—from its biological functions to its profound impact on our physical and mental health.
Expect to learn:
— Why studying the extremes of human behavior helps us understand normal brain function
— How sleep affects everything from immune function to cognitive performance
— The surprising way our brain's "glymphatic system" cleans toxins during deep sleep
— Why insomnia treatments like CBT-I are so effective and how they work.
And more.
You can learn more about Guy's work at https://www.guyleschziner.com.
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Guy Leschziner, Ph.D., is a neurologist specializing in sleep disorders and epilepsy, serving as Consultant Neurologist at London Bridge Hospital and Clinical Lead for the Sleep Disorders Centre at Guy’s and St Thomas’ Hospital, one of Europe’s largest sleep units. He is also Reader in Neurology at King’s College London’s Institute of Psychiatry, Psychology and Neuroscience. Dr. Leschziner is the author of The Nocturnal Brain, The Man Who Tasted Words, and The Seven Deadly Sins, and has presented sleep-focused series for BBC Radio and Channel 4.
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Interview Links:
— Guy’s website: https://www.guyleschziner.com/
— Guy’s book: https://amzn.to/3VvTnb6
Drawing on insights from neuroscience, clinical practice, and evolutionary biology, Guy explores the fascinating world of sleep—from its biological functions to its profound impact on our physical and mental health.
Expect to learn:
— Why studying the extremes of human behavior helps us understand normal brain function
— How sleep affects everything from immune function to cognitive performance
— The surprising way our brain's "glymphatic system" cleans toxins during deep sleep
— Why insomnia treatments like CBT-I are so effective and how they work.
And more.
You can learn more about Guy's work at https://www.guyleschziner.com.
---
Guy Leschziner, Ph.D., is a neurologist specializing in sleep disorders and epilepsy, serving as Consultant Neurologist at London Bridge Hospital and Clinical Lead for the Sleep Disorders Centre at Guy’s and St Thomas’ Hospital, one of Europe’s largest sleep units. He is also Reader in Neurology at King’s College London’s Institute of Psychiatry, Psychology and Neuroscience. Dr. Leschziner is the author of The Nocturnal Brain, The Man Who Tasted Words, and The Seven Deadly Sins, and has presented sleep-focused series for BBC Radio and Channel 4.
---
Interview Links:
— Guy’s website: https://www.guyleschziner.com/
— Guy’s book: https://amzn.to/3VvTnb6
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