Altitude Sickness in Tibet
Altitude sickness is a disorder caused by being at high altitude, where oxygen levels are low, without gradually getting used to the increase in altitude. It is also known as acute mountain sickness (AMS), altitude illness, hypobaropathy, Acosta disease, puna, and soroche, which occurs at altitudes higher than 2,500 meters. Altitude sickness is considered as the biggest health risk for travelling to Tibet. Most people will experience differing degrees of symptoms upon their arrival in Tibet according to the ascent rate and individual physical condition. In the course of adaptation, symptoms usually decrease gradually.