Altitude sickness, also known as Acute Mountain Sickness (AMS), occurs when a person's body is struggling to adapt to high altitude. Preventing AMS is extremely important because it's difficult to treat once you have it. People who are more at risk for developing altitude sickness are:
- People traveling to elevations above 5000 feet, from sea level.
- People who have had altitude sickness in the past.
- Athletes who want to perform their best at altitude.
- People who are more fatigued at altitude.
- People who feel "hung over"at altitude.
- People that are prone to dehydration.