The following are recommended to achieve acclimatization:
1. Ascend Slowly. Because it takes time to acclimatize, your ascension should be slow. Taking rest days will help.
2. Do not overexert yourself. Mild exercise may help altitude acclimatization, but strenuous activity may promote HAPE.
3. Take slow deliberate deep breaths.
4. Climb high, sleep low. Climb to a higher altitude during the day, then sleep at a lower altitude at night.
5. Eat enough food and drink enough water while on your climb. It is recommended that you drink from four to five liters of fluid per day. Also, eat a high calorie diet while at altitude, even if your appetite is diminished.
6. Avoid tobacco, alcohol and other depressant drugs including, barbiturates, tranquillizers, sleeping pills and opiates. These further decrease the respiratory drive during sleep resulting in a worsening of altitude sickness.
7. If you begin to show symptoms of moderate altitude sickness, don't go higher until symptoms decrease. If symptoms increase, descend.
8. If you do not feel well, do not try to pretend you are fine and mask your symptoms and say you feel OK. Only with accurate information can best treat you.