At what altitude does acute mountain sickness typically occur?

Acute mountain sickness (AMS) commonly occurs at elevations starting around 7,000 feet. This condition arises as a result of reduced oxygen levels and lower atmospheric pressure at higher altitudes, which can affect individuals who are not acclimatized. Symptoms of AMS may include headache, nausea, dizziness, and fatigue.

While some individuals may begin to experience symptoms at altitudes slightly below 7,000 feet, the likelihood and severity of AMS increase significantly as one ascends into the 7,000 to 8,000 feet range. It's important for individuals ascending to these altitudes to recognize the potential for AMS and to take precautions such as ascending gradually and allowing time for acclimatization. Understanding the typical altitude range for AMS helps athletes and outdoor enthusiasts plan safer activities in high-altitude environments.