Some people develop altitude sickness when climbing high mountains.

有些人在爬高山时会发生高山反应。

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Altitude illness is divided into three syndromes: acute mountain sickness (AMS), high-altitude cerebral edema (HACE), and high-altitude pulmonary edema (HAPE).

高山疾病可分为三种征状：急性高山症(AMS)、高山脑水肿(HACE)与高山肺水肿(HAPE)。

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A lowlander exposed to the low oxygen concentrations of high elevations can quickly fall victim to altitude sickness, whose symptoms include nausea, dizziness, and fatigue.

生活于平地的人一旦暴露在高海拔环境中，因为缺氧立即会出现高原反应：恶心，眩晕及乏力。

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Similar devices are often used in hospitals, but the consumer version is aimed at aviators, high-impact athletes and those susceptible to altitude sickness.

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The climbers at Base Camp are usually well acclimatised and know how to avoid altitude sickness, which is caused by moving to high altitude too quickly.

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