「Consecutive monitoring of sleep disturbance for four nights at the top of Mt Fuji (3776 m)」

Three healthy male subjects climbed the top of Mt Fuji (3776 m) and stayed there for 6 days. The results of polysomnographic recordings revealed that disturbed sleep characterized by an increased number of arousals and/or long wake time was observed to persist through the fifth night in all subjects.（健常男子3人が富士山頂に登山し、6日間山頂に滞在した。睡眠ポリグラフィにより、夜間睡眠の中途覚醒回数および中途覚醒時間の増加が引き起こされ、滞在第5夜までこれら睡眠問題は回復しなかった。）
pp.223-225
Mizuno K, Asano K, Inoue Y, Shirakawa S

Psychiatry Clin Neurosci