Soroche, or acute mountain sickness (AMS), is the body’s difficulty in adapting to the lower oxygen levels at high altitudes. The condition commonly appears at elevations above 2,000 meters (6,561 feet), although individual tolerance varies. While some travelers adjust easily to Cusco’s 3,400 meters, others struggle at lower altitudes like 2,800 meters.
Despite airport ads claiming miracle cures, there is no magic pill for altitude-related hypoxia. However, there are practical ways to reduce the risk of symptoms. Avoiding alcohol, eating light meals, and taking it slow during your first days at altitude can go a long way toward preventing discomfort.
What Are the Symptoms of Altitude Sickness?

Altitude sickness can manifest with a range of non-specific symptoms, making it tricky to diagnose. Some of the most common signs include:
- Headache
- Dizziness
- Fatigue
- Vomiting
- Loss of appetite
- Rapid heartbeat (tachycardia)
If you experience several of these symptoms shortly after ascending, and other causes have been ruled out, it’s best to assume it’s mountain sickness. The most important recommendation: do not ascend any further until you recover.
For mild symptoms, rest and hydration are often enough. However, if the condition worsens, it’s critical to descend to a lower altitude. In severe cases, seek professional medical help immediately.
Can Anyone Get Soroche?
Yes. Altitude sickness is unpredictable. It does not discriminate by age, gender, or fitness level. Surprisingly, even young, athletic individuals can suffer from it, while others may feel completely fine.
Factors like physical condition or previous high-altitude experience may play a role in how you adapt, but there is no guaranteed immunity. The key is to listen to your body and take time to adjust.
How to Adapt to High Altitude?

Most travelers adapt with no need for medical attention or major changes in their plans. Still, it’s unrealistic to expect the same performance you’d have at sea level.
Your body needs time to produce more red blood cells and adjust oxygen use efficiently. Here’s what you can do:
- Avoid physical exertion for the first 24–48 hours
- Sleep well and stay hydrated
- Eat light, easy-to-digest meals
- Plan at least one or two days of acclimatization before visiting destinations like Machu Picchu or Lake Titicaca
Remember, Cusco is over 3,000 meters above sea level, while Lima is near sea level—a drastic difference your body needs time to manage.
How to Prevent Altitude Sickness?
1. Eat Light and Smart
Heavy foods, especially red meat and fatty meals, are harder to digest at altitude. It’s best to consume light meals with vegetables, grains, and soup before and during your ascent.
2. Avoid Alcohol
Alcohol can worsen dehydration and interfere with your body’s adaptation. Refrain from drinking the day before and at least two days after reaching high altitude.
3. Hydrate Properly
Drink at least two liters of water daily. Dehydration can amplify soroche symptoms and slow your recovery.
Coca Tea for Altitude Acclimatization
One of the most traditional remedies for soroche in the Andes is coca tea, known locally as mate de coca. The coca leaf has been used for centuries by Andean communities for its medicinal properties. Chewing the leaves or drinking the tea may reduce nausea and dizziness associated with high altitudes.
While chewing coca (known as acullicar or chacchar) is common, it’s typically done without swallowing the leaf pulp. The tea is widely available in hotels, cafés, and even airport lounges throughout the Andes.
This practice is legal in Peru, Bolivia, and some parts of northern Argentina and Chile, though it’s important to note that traveling with coca products outside of these regions is prohibited.
Final Tips for a Smooth Journey
Traveling to high-altitude destinations in Peru can be an unforgettable experience—but only if your body cooperates. Prioritize acclimatization, avoid overexerting yourself, and pay attention to early symptoms. Whether you’re hiking to Machu Picchu or exploring Cusco’s colonial streets, your trip will be far more enjoyable if you’re not battling soroche.
And don’t forget to stay connected. With PeruSIM, you can purchase a SIM card with a data plan tailored to your trip, ensuring that you can navigate, communicate, and stay safe throughout your adventure.
FAQs About Altitude Sickness in Peru
1. How long does altitude sickness last?
Symptoms typically improve within 24 to 72 hours, as long as you rest and avoid climbing to higher altitudes. If symptoms persist or worsen, it’s best to descend and consult a doctor.
2. Can altitude sickness be prevented with medication?
Some travelers use some medication that can help with acclimatization. However, it should only be taken with a doctor’s recommendation and does not replace basic preventive measures like rest and hydration.
3. Is coca tea safe for everyone?
Coca tea is generally considered safe in moderate amounts for healthy adults. However, people with heart conditions or on blood pressure medication should consult a doctor before using it. Pregnant individuals should also be cautious.
Staying Connected While Traveling in Peru
When traveling through high-altitude regions of Peru, such as Cusco, Puno, or Huaraz, having reliable mobile access can be crucial. Whether you’re using a translation app, navigating unfamiliar streets, or contacting a doctor, staying connected helps improve safety and comfort. That’s why many travelers choose a tourist sim card in Peru through PeruSIM, which allows for data access without the burden of expensive roaming fees.

