<unk>  is the study of the effects of high altitudes on the body, such as different pressures and levels of oxygen. At different altitudes the body may react in different ways, provoking more cardiac output, and producing more erythrocytes. These changes cause more energy waste in the body, causing muscle fatigue, but this varies depending on the level of the altitude.
Aerospace physiology
Air quality guideline
Assistive technology
Anatomical terminology
Cylinder manifold
Drug packaging
Brain–computer interface
Ultrasound research interface