Human Adaptation to High Altitude

This scientific study aims at studying human adaptations to high altitude and the studies will be conducted at the University of Zürich and during a 4 week high altitude "expedition" to the Jungfraujoch research station at 3450 m altitude. The proposal is made up of several independent biological research projects to be conducted in the same healthy volunteers participating in the study. Thus, the subjects will be studied at sea level, and then during 4 weeks of acclimatization to high altitude, and for some experimental purposes all subjects will also be studied one and two weeks after return to sea level.