How long can symptoms of acute mountain sickness typically last?

Symptoms of acute mountain sickness (AMS) typically last up to 3 days. The condition arises due to the body’s inability to adjust quickly to high altitudes where the oxygen levels are lower than at sea level. After ascending to higher elevations, individuals may begin to feel symptoms such as head pain, nausea, and fatigue as the body attempts to acclimatize.

These symptoms can manifest within hours of ascent and can persist as the body works to adapt. While some individuals may experience relief sooner, it's common for symptoms to linger for a few days before they begin to resolve as acclimatization occurs. The timeframe of up to 3 days reflects the average duration of symptoms for many who experience AMS, while some may require longer recovery depending on individual variations and the rate of ascent.