… With higher altitudes one is increasingly exposed to ultraviolet, solar and cosmic radiation,
and ozone, the triatomic form of oxygen. Ozone mainly exists in the ozonosphere from around …

… Exposure to cold air at high altitude may thus counteract the beneficial effects of improved
air … (FiO 2 ), prolonged exposure to cold air and high altitude on lung function, asthma control …

… Studies of acute exposures to altitudes as low as 3000 m (9843 ft) show alterations in … After
an initial period of euphoria, continued exposure to moderate and high altitudes may produce …

… [23] It is rather interesting that exposure to high altitude (HA), either during long-haul air
flights, ascension to HA (eg, mountain climbing), or within the sports arena by either natural or …

… Allergen exposure is often less, but the cold, dry air of altitude may worsen asthma. It is
more difficult to advise patients with chronic obstructive pulmonary disease. Ideally they should …

… consequences of high altitude exposure. … stay at high altitude can have a physiological
effect on the human immune system. Environmental factors at high altitude such as UV exposure, …

… no rapid transport facilities to lower altitudes and/or prolonged sojourn at high altitude, we
recommend high-altitude simulation at low altitude by breathing hypoxic air via a facial mask. …

… high altitude (HA) locations, defined as locations higher than 2500 m above sea level (asl),
1S ie the altitude … cardiovascular events associated with HA exposure is still a debated issue. …

… at high altitude and then rest days at sea level, for years), or permanent exposure to high
altitudes … it has been estimated that more than 81.6 million people live at altitudes ≥2500 m [1]. …

… exposures to high altitudes. These disorders may occur in any individual who ascends to …
exposures to high altitude. These disorders may affect any person who ascends to high altitude…