To prevent altitude sickness, key strategies include ascending gradually to higher elevations, staying well hydrated, and eating a diet rich in carbohydrates. Avoid alcohol, smoking, and strenuous exercise during the first few days at altitude. It’s recommended to climb slowly, no more than about 1,000 to 1,600 feet per day once above 8,000 feet, and to have rest days every few thousand feet to allow your body to acclimate. Sleeping at a lower altitude than where you climb during the day can also help. In some cases, medications like acetazolamide (Diamox) can be prescribed to prevent symptoms. Listening to your body and resting if symptoms develop are crucial steps. These measures collectively reduce the risk and severity of altitude sickness.