Science
Masashi Yanagisawa
The Science of Sleep
A world-renowned sleep researcher who first discovered the arousal-regulating substance “orexin”
Lesson Plan
- Lesson Length : 6 Lessons ㆍ 1 hours 35 miutes
- Language : 한국어, English
From sleep principles to disorders and better sleep strategies
Sleep is not optional but essential in modern life. However, its fundamental mechanisms remain only partially understood. In this lecture, Professor Yanagisawa explains how sleep is regulated through the interaction of sleep cycles, sleep pressure, and the biological clock. He examines how sleep deprivation affects health, including growth, obesity, and dementia, supported by scientific research. The lecture also explores the mechanisms of sleep and wakefulness centered on the discovery of orexin. Additionally, it highlights the gap between subjective sleep perception and objective measurements through polysomnography. Finally, it offers practical strategies for improving sleep, providing meaningful solutions for those experiencing sleep disorders.
Full Bio
Masashi Yanagisawa
- Japanese medical scientist
- Director, International Institute for Integrative Sleep Medicine, University of Tsukuba
- Breakthrough Prize (2023)
- Designated Person of Cultural Merit by the Japanese Government (2019)
- Recipient of the Order of the Sacred Treasure (2016)
Masashi Yanagisawa is a Japanese medical scientist and a globally recognized sleep researcher. He currently serves as the Director of the International Institute for Integrative Sleep Medicine at the University of Tsukuba. He is best known for discovering orexin, a key neurochemical that regulates sleep and wakefulness. His research clarified the mechanisms behind narcolepsy and led to the development of treatments for insomnia, marking a turning point in sleep medicine. He continues to lead research on the causes and treatments of sleep disorders.
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