Sleep Medicine pp 125-127 | Cite as

Evolution of Sleep Medicine in Japan

  • Masako OkawaEmail author


The history of growth of sleep medicine in Japan is rather recent. It was only in 1994 when all night polysomnography (PSG) was covered by the public health insurance. Prior to that, PSG was performed only for research purposes in a few university hospitals or research institutes, mostly by psychiatrists or basic researchers. No clinical polysomnographer existed at that time. The number of sleep disorder clinics increased rapidly since PSG was covered by the public health insurance.


Sleep medicine in Japan 


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© Springer Science+Business Media, LLC 2015

Authors and Affiliations

  1. 1.Department of Sleep MedicineShiga University of Medical ScienceOtsuJapan

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