Travel Tips
Hypothermia on Nepal Treks Recognition
Hypothermia develops faster than most trekkers expect when wet and cold combine above 3,000 metres. Recognising early signs prevents a manageable chill from becoming a crisis.
Overview
Hypothermia occurs when core body temperature drops below 35 degrees Celsius. On Nepal treks, the combination of wet clothing, wind, fatigue, and inadequate caloric intake creates conditions where hypothermia can develop even at air temperatures well above freezing. The highest risk periods are afternoon rain events above 3,500 metres and cold, windy ridge crossings in early morning.
Early (mild) hypothermia presents as intense shivering, impaired coordination, slurred speech, and irritability. The person may deny feeling cold — a dangerous feature of the condition. Moderate hypothermia brings cessation of shivering (the body no longer has energy to generate heat), extreme fatigue, confusion, and a paradoxical feeling of warmth that causes victims to remove clothing.
Treatment in the field: get the person out of wind and wet. Remove wet clothing and replace with dry layers. Insulate from the ground with sleeping pads. Cover the head, neck, and torso. Provide warm (not hot) sweet drinks if the person is conscious and can swallow. Warm water bottles wrapped in clothing and placed in the armpits and groin accelerate core rewarming. Do not rub limbs vigorously — this diverts cold blood from the extremities to the core.
Prevention is better than any treatment. Carry a dry insulating layer in a waterproof bag at all times. Change out of wet base layers during rest breaks. Eat calorie-dense snacks every 90 minutes on cold days. Identify shelter options (teahouses are rarely more than two hours apart on established routes) before weather deteriorates.
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FAQ
Q: Can hypothermia occur in summer in Nepal?
A: Yes. Above 4,000 metres, summer afternoon thunderstorms can drop temperatures rapidly. Wet conditions and wind accelerate heat loss regardless of season.
Q: Should I give alcohol to a hypothermic person to warm them?
A: No. Alcohol causes peripheral vasodilation which increases heat loss. It also impairs judgment and masks symptoms. Never give alcohol to a hypothermic person.
