How does living at high altitudes affect your health?

High altitude: Living at higher altitudes is different than visiting. When you live there, your body has time to completely adjust. When you visit, you need to make more compensations, but if you stay for more than a few weeks, your body will do it on its own for the most part.People may feel affects from higher altitudes as low as 4000 ft above sea level. Usually by 6000 ft, they will experience more fatigue.