Andrew Hooge, CSCS Symptoms of Altitude Sickness High altitude is defined by elevations above 5280 feet (approximately 1 mile high). A sudden change in environment from sea level to high altitude can produce symptoms of dizziness, nausea, insomnia, diarrhea, restlessness, and shortness of breath. Palpitations or fast heartbeat, headache, nasal congestion, coughing, increased flatulence or gas, easy fatigue and intolerance to exertion may also be experienced. If the high altitude experience progresses, more shortness of breath and increased coughing and edema (fluid accumulation in the lungs) may occur, requiring medical attention and possible hospitalization.
How Long Does it take to acclimate and what can I do to help curb the symptoms? The initial complaints should disappear as your body adjusts to the lowered oxygen content and dryness. This may take anywhere from a few days to a few weeks. Upon arrival to high altitude, drink plenty of water, eat lightly and limit alcohol for the first 48 to 72 hours (alcohol aggravates the high altitude syndrome). Most of all keep physical exertion to a minimum for the first day. Over-exertion before your body can adapt to the lower oxygen and dryness can result in more severe and persistent symptoms.
Final Notes Remember to hydrate! Rest appropriately and do not over-ski during the first two days. Take a nap when sleepy and get a good night's sleep after a day of skiing. Eat lightly and drink plenty of liquids, but limit alcohol for the first 48 hours.