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How to Avoid Altitude Sickness in Everest Base Camp Trek?

  Written by : Swotah travel

   Oct 31, 2022


How to Avoid Altitude Sickness in Everest Base Camp Trek?

People from all over the world have travelled to Nepal to climb Mount Everest, which stands majestically there. Since it is the tallest mountain in the world, many people visit its peak to either live out their mountaineering in the wilderness or just to enjoy life. Regardless of the cause, a lot of people have been visiting the area. Many individuals cannot climb such a massive peak, but they can walk at least as far as its base camp. As a result, thousands of people set out on the Everest Base Camp Trek every year. There are many obstacles for the trekkers to overcome as they deal with the cold weather and higher altitude.


With Mt. Everest, the highest mountain in the world, standing at 8848 meters, the Everest area is the highest region in Nepal, located at 4,000 meters. Dealing with high-altitude sickness is one of the greatest difficulties trekkers encounter when attempting to reach Everest Base Camp or any other high-altitude trek. We typically feel the effects of altitudes about 1,500 to 2,000 meters or above.


The journey typically takes place in the two altitude regions, "high altitude" and "very high altitude," rising from an average beginning elevation of 2,600m at Lukla Airport to a high point of slightly over 5,500m at Kala Patthar.


The danger of altitude-related illnesses such as acute mountain sickness, high-altitude cerebral edema (HACE), and high-altitude pulmonary edema is present in certain high-altitude zones (HAPE). To protect both your safety and the safety of others, you must comprehend the dangers associated with different types of altitude sickness and how to recognize symptoms and respond to them.

trekker in everest base camp trail

What Is High Altitude Acclimatisation?

The longer it takes you to rise to a high altitude, the longer your body will become used to the decreased oxygen levels, known as acclimatization. It describes how the body adjusts to the adverse effects of high elevations, such as decreased oxygen levels and air pressure. You would have altitude sickness after a few hours if you took a helicopter from Kathmandu to 5,000m. You would perish if you did not drop quickly (or consume oxygen from a bottle).


This information is extremely valuable. Since we have organized treks in several high-altitude regions of Nepal for more than 20 years, we have applied the same strategies that have proven to be quite effective. Please remember, though, that anyone can get altitude sickness. Altitude sickness can affect anyone, including people who were born and raised in high-altitude areas. 


Never be reluctant to seek out immediate medical attention if you become ill with such a disease. You can employ a variety of methods when trekking to Everest Base Camp. You can either request a medical helicopter rescue or hire a pony or porter to transport you to a lower altitude. Obtain adequate insurance that will cover the cost of your medical care and helicopter rescue. 


Without getting too scientific, a brief explanation of the physiological changes that occur in the body at high altitudes may help you comprehend the significance of the acclimatisation process and why it cannot be hurried or skipped.


What are the symptoms of Altitude Sickness?


Headaches, a loss of appetite, trouble sleeping, blurred vision, nausea, breathing difficulties, a quick heartbeat, and exhaustion are a few of the symptoms. Since each person's body responds differently to unfamiliar situations, not everyone experiences altitude sickness.


Why does it even matter?

The Everest Base Camp Trek is a tremendously exhilarating and well-known trekking route in Nepal, but it is also very dangerous. The foliage begins to fade as treks ascend. They must ascend to the summit of Kalapathar, which is 5545 meters high. Every night, there is an average elevation difference of around 300 m. Trekkers will depart from Kathmandu at 1300 meters and fly straight to Lukla (2800 m). They will need to acclimate their bodies to 3400 m after Lukla, which will take roughly two days. As a result, there is a good probability that trekkers will get altitude sickness.

 trekker suffered with altitude sickness

How to avoid altitude sickness on the Everest base camp trek?


  1. Climb Slowly

Our bodies must acclimatize to the oxygen level over time. Trekkers can modify their bodies more easily by moving gently and climbing. The hasty walking can also be a main contributing aspect of altitude sickness.


  1. Rest after a proper acclimatization

High-altitude trekking requires an acclimatization break of at least two days. You should trek as high as possible during the acclimatization break and then return to a lower location for the night's sleep. The first acclimatization stage occurs at Namche Bazaar (3400 m), from which trekkers ascend to Everest View Hotel (3880 m) and return to Namche for the night. 


The main rule of achieving good acclimatization rest is to get higher and rest lower, therefore, don't be afraid to stroll on your rest day. At Dingboche, the second acclimatization is the best (4400 m). Trekkers will arrive at the Nagarshan Hill peak, around 5100 m, after resting here. 


Once there, they must stay for at least 30 minutes before descending to 4400 meters to rest for the night. Acclimatization rest not only assists in preventing altitude sickness but also aids in the body's recovery of its worn-out muscles and adaptation to the altering oxygen level.


  1. Don't consume tobacco, alcohol, or cigarettes.

The amount of oxygen in the air reduces as the altitude rises because it gets so thin. Due to increased altitude, less greenery is seen along the Everest Base Camp trek route. Trekkers must climb and descend hills, which calls for extreme physical fitness. Alcohol, tobacco, and cigarette use all lower the body's water content. Your heart becomes sluggish and slow as a result. 

 cups of warm water with everest background

  1. Drink enough warm water.

The best cure is water. Always keep your body hydrated. Throughout the trek, consistently sip warm water rather than cold. The easiest strategy to prevent altitude sickness in hilly areas is to drink enough water. Every 30 minutes of walking, it is advised that you should replenish your body with 500 cc of water.w


  1. Eat a lot and well.

During high-altitude trekking, a lot of people experience appetite loss and end up eating very little. It is really dangerous. Eat more liquid-based foods and avoid leaving your stomach empty. The likelihood of avoiding altitude sickness will rise if you eat well.


  1. Be Prepared Mentally

Many people worry that they might become altitude-sick. You could occasionally get a disease due to psychological reasons. Consequently, be ready and confident as well. Instead of thinking negatively, take in the beautiful surroundings. Talk more to your guide or fellow trekkers, and always maintain a pleasant attitude.

Benefits Of A 14-day Trek To Everest Base Camp:


Beyond acclimatization, a longer route to Everest Base Camp has advantages. More days mean more "buffer days" in case of delays throughout the course of the journey. In case of inclement weather, flights from Kathmandu to Lukla Airport are frequently delayed. A group could not safely complete the 12-day trek if one day is lost waiting for the planes to fly. The Base Camp of Mount Everest could easily be reached in 13 days on a 14-day trip.


There have been other instances where having extra days has allowed group members to reach Base Camp. It has happened that someone will become ill from AMS or contract a virus. While the rest of the company proceeded higher, they spent a rest day in the lodge with one of our guides. They made the trek to the higher lodges the following day after feeling better.



When hiking in the Himalayas, it's crucial to acclimate to the high altitude. You should consult your local trekking agency for longer itinerary for everest base camp trek. This indicates that the majority of our trekkers achieve their objectives of seeing Kalapathar and Everest Base Camp. Most importantly, they enjoy the trek and have a blast doing it!


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