Quick Answer
Altitude sickness and mountain sickness are often used interchangeably, but altitude sickness specifically refers to the condition that occurs when the body cannot adapt to high elevations, typically above 8,000 feet. Symptoms can be similar but are often more severe at higher elevations. Acute mountain sickness (AMS) is the most common form of altitude sickness.
Understanding Altitude Sickness Symptoms
Altitude sickness symptoms can range from mild to severe and can include headaches, fatigue, nausea, and dizziness. These symptoms often occur within 6 to 24 hours of ascending to high elevations. In severe cases, symptoms can include confusion, shortness of breath, and even death. Keep an eye out for the Lake Louise Score, a simple assessment tool that involves rating symptoms from 0 to 3. A score of 3 or higher may indicate severe AMS.
Assessing Altitude Sickness
To assess altitude sickness, consider the location and the rate of ascent. Ascending too quickly (more than 1,000 feet per day) increases the risk of developing altitude sickness. At elevations above 10,000 feet, the risk of altitude sickness is significantly higher. To mitigate this risk, gradually ascend to higher elevations and drink plenty of water to stay hydrated. If symptoms persist or worsen, descend to a lower elevation immediately.
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