Altitude Sickness and Acclimatization while climbing Mera Peak
One major problem that the trekkers will face during a high-altitude environment like that of Mera Peak is altitude sickness. During this trek, they reach high-altitude places like Mera La Pass, Mera High Camp, and Mera Summit, which lies above an altitude of 6000m. The trekkers can notice they have symptoms of altitude sickness if they suffer from cold, nausea, vomiting, shortness of breath, fever, pain in joints and bones, etc.
Acute mountain sickness can be equally serious as well. Two conditions of this sickness can prove to be fatal: HAPE (High-Altitude Pulmonary Edema) and HACE (High-Altitude Cerebral Edema). HAPE affects the heart and lungs of the trekkers, whereas HACE affects the brains of the trekkers. Trekkers, especially beginners, often fail to recognize that there is no cure for altitude sickness, but it can be minimized or prevented if a certain preparation is made. One of the best ways to prevent the Mera Peak trek is acclimatization.

Acclimatization
Acclimatization is how trekkers adjust to the change in weather, temperature, conditions, and mostly oxygen levels at high altitudes. The lower oxygen levels in the surroundings make it harder to breathe for trekkers at high altitudes, which invites altitude sickness or acute mountain sickness. Here are a few ways that the trekkers can acclimatize.
Trek High Sleep Low
Each day, the trekkers must try to sleep at a lower altitude than the height they reached the day before. This helps their bodies adjust to the peak altitude while also allowing them to rest and recover better at the lower altitude. This acclimatization process is very important, which is why each and every trekker, especially the beginners, must learn about it.
Gradual Ascent
Another way to acclimate during the high-altitude trek is to climb the altitude gradually. Rushing towards the summit is not advisable as it increases the chance of altitude sickness. Before the day of the summit, guides and experts will provide you with details on the tools you will be using and basic climb guides that will help you in the long run.
Keep Yourself Hydrated
Another way of acclimatizing your trek at high altitude is keeping yourself hydrated all the time. When you are at high altitude, dry air and exercise can make it easy to become dehydrated. Dehydration can cause discomfort and lead to issues like severe headaches. To avoid losing too much fluid, try to keep your body temperature down and avoid sweating too much. Aim to drink at least 3 liters of fluid each day. Drinking plain cold water can be tough, so you might find it helpful to use flavoring powders. It’s also a good idea to carry rehydration sachets for when you feel dehydrated. You can check your hydration level by examining your urine; it should be clear and plentiful.