Acclimatization in Leh
Acclimatization and Altitude Sickness
Ladakh is a high altitude cold desert with a low level of atmospheric oxygen. It is, therefore, absolutely necessary that visitors reaching Leh from the plains of India by air, give themselves sufficient time for acclimatization before engaging in any physical activity. The rarefied atmosphere may cause high altitude ailments like Acute Mountain Sickness, necessitating instant evacuation of visitors who are unable to get acclimatized. Anyone travelling to altitudes above 10,000 ft (2,700 m) is liable to suffer from acute mountain sickness (AMS) unless properly acclimatized.
The most common symptoms of acute mountain sickness are headache, disturbed sleep and loss of appetite, nausea, coughing, irregular breathing, breathlessness, lassitude and lack of concentration. If you are reaching Leh by air, it is important to take complete rest for the first 24 hours after arrival. Any kind of physical exertion is to be avoided. Smoking and drinking should also be avoided till you are fully acclimatized. The symptoms of acute mountain sickness generally develop during the first 36 hours, and not immediately upon arrival. Your body should get used to the lower oxygen level of Ladakh after 2 or 3 days if you have taken complete rest for the first 24 hours and as much rest as possible during the next 12 hours.
High Altitude Pulmonary Oedema (HAPO) and High Altitude Cerebral Oedema (HACO) are very serious forms of acute mountain sickness. These are life-threatening ailments and warrant immediate medical attention. As a preventive measure, Tab Diamox 250 mg should be taken at the rate of 1 tablet twice a day for 3 days, at least 2 days before coming to Ladakh or any high altitude area.