Dr. Tom Colletti
Worldwide, 140 million people live above 2400m (7874 ft) and even more visit high altitudes every year. Exposure to high altitude is associated with hypoxia-related increases in cognitive impairments and sleep disruptions. The aim of this study was to determine if latitude could exacerbate the effects of high-altitude. Over two consecutive nights each participant meeting selection criteria had their sleep stages recorded determine how latitude affects sleep patterns at high altitudes. Results suggest that there was a statically significant impact on total sleep with nonsignificant trends in rapid eye movement (REM) stage and sleep onset latency (SOL) while other sleep stages appear unaffected by latitude; and these effects, with additional research, may be linked to high altitude injuries and deaths.
Keyword: Denali, Mt. Everest, high altitude, sleep, partial pressure, troposphere
Wehling RR. The Effects of Latitude on Sleep at 4,300m. Lynchburg Journal of Medical Science. 2021; 3(4).
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