Altitude sickness, also known as acute mountain sickness (AMS), occurs when your body struggles to adjust to the lower oxygen levels at high altitudes, typically above 2,500 meters (8,200 feet). It commonly affects hikers, climbers, and travellers in mountainous regions or high-elevation areas.
Symptoms of Altitude Sickness:
- Headache: One of the most common early symptoms.
- Nausea and Vomiting: Feeling sick or actually being sick.
- Dizziness: A sense of spinning or lightheadedness.
- Fatigue: Feeling unusually tired or weak.
- Shortness of Breath: Difficulty breathing, especially during physical activity.
- Loss of Appetite: A reduced desire to eat.
- Sleep Disturbances: Trouble falling or staying asleep.
Causes:
At higher altitudes, the air pressure decreases, resulting in lower oxygen levels. This makes it harder for your body to get enough oxygen, causing symptoms as it tries to adjust to the new environment.
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Who is at Risk?
- Travellers ascending too quickly (without proper acclimatization)
- Those spending extended periods in high-altitude areas
- People with a history of altitude sickness
Types of Altitude Sickness:
- Acute Mountain Sickness (AMS): The mildest and most common form, with symptoms like headache, fatigue, and nausea.
- High-Altitude Pulmonary Edema (HAPE): A more serious condition involving fluid buildup in the lungs, leading to severe breathing difficulties.
- High-Altitude Cerebral Edema (HACE): A potentially life-threatening condition where the brain swells due to low oxygen, leading to confusion, inability to walk, and even coma.
Prevention & Treatment:
- Gradual Ascent: Climb slowly to allow your body time to adjust to the altitude.
- Hydration: Drink plenty of water to stay hydrated.
- Medications: Acetazolamide tablets can help prevent or reduce symptoms.
- Oxygen: Supplemental oxygen may be needed at higher elevations.
Altitude sickness can become severe if untreated, so it’s important to take precautions and recognize symptoms early.