How do Tibetans avoid altitude sickness?

Due to the region's elevation, the average traveler to Tibet often experiences altitude sickness -- a condition caused by a lack of oxygen in the blood. Check out this HowStuffWorks podcast to learn how Tibetans have adapted to life in high altitudes. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com See omnystudio.com/listener for privacy information.