What is the main symptom of acute mountain sickness?

A headache, often with nausea or fatigue.

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  1. An itchy rash
  2. A headache ✔
  3. A sore throat

Why: Headache is the main symptom of AMS and usually comes with others like nausea, fatigue or dizziness.

Huh, didn't know that: CDC compares AMS symptoms to an alcohol hangover.

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What do you call a slow skier? A slope-poke.
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References

Answer: A headache. Headache is the main symptom of AMS and usually comes with others like nausea, fatigue or dizziness.

  1. CDC Yellow Book: High-altitude travel and altitude illness www.cdc.gov/yellow-book/hcp/environmental-hazards-risks/high-altitude-travel-and-altitude-illness.html
    AMS symptoms are like those of an alcohol hangover; headache is the cardinal symptom
    Checked 2026-10-10.

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