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How to avoid altitude sicknes

Infographic showing altitude sickness symptoms and prevention techniques for climbers
By Himalayan Smile Treks | 11 Jul, 2025

Altitude sickness is not a big issue if you become smart before heading to a high altitude. A small mistake can create altitude sickness, which is enough to ruin your journey. Having some information about altitude sickness before heading towards high altitude is truly helpful, which can make your journey better, and you can be able to help someone else who has altitude sickness. Below, we are discussing how to avoid altitude sickness.

  • Ascend slowly when you are above 3500 m/11480 ft., around 300 m/1000 ft. per day: When you are high above 3500 m, it's always better to climb at a slow pace, and we don’t have to hike more than 300 m/1000 ft. Listen to your body; don’t ignore it if any symptoms persist.
  • Get rest: When you are hiking up in the high mountains above 3500 m, you should always be conscious about taking rest and letting the body get relaxed out of any anxiety, pain, & suffocation. The important thing you should remember is not to walk with a hurried pace, even if you are okay. Make your pace slow and steady, and take sufficient rest.
  • Eat plenty of hygienic food: When you are up high in the mountains, you should eat plenty of hygienic food, which should be enough to keep your energy level high. Besides that, you can have a protein bar, chocolate, cashew nuts, and hot soup. Eating properly helps your body to keep a high level of energy.
     
  • Test your blood, pulse, & heart every 12 hours. To make sure all the body organs are working normally, you should have to check your blood pressure, pulse rate, and heart rate. These tests are pretty simple nowadays; you can check these with your smartphones and can also use a device called a pulse oximeter, which is really helpful in measuring the volume of oxygen in the body.
     
  • Get your medication kit with sufficient medicine: Don’t forget to carry the first aid kit box filled with possible medicine and Band-Aids with some antiseptic. For high altitude sickness, Diamox, Acetazolamide, and Dexamethasone are recommended. Get your medicine by prescription from an authorized doctor or medical expert.
     
  • Drink plenty of water and fluids: During your journey to high altitude, you should have to drink plenty of water as well as fluids, which helps keep your body hydrated. Many people are still unaware of the fact that we lose more water from the body in high altitudes and dry atmospheres. We should drink 2 liters of water during the day, and in addition, tea, coffee, & soup are helpful.
     
  • Carry plenty of clothing: Clothing is also always a major factor when you go outdoors in the woods. Having sufficient clothes makes your journey memorable, and on the other hand, not having sufficient clothes can easily ruin your journey. It’s really painful when you have a fever and illness and you don’t have sufficient outfits to wear, which can make the situation into a miserable incident.