How Altitude Sickness Works
Altitude sickness can strike suddenly and unpredictably. And it's not just for the mountain climbers among us. Any rapid change in altitude can cause the onset of sickness. While most of our knowledge about altitude sickness is geared toward climbing (because the activity is based on rapid, steady rates of ascension) even flying or driving to higher altitudes can produce symptoms. Planning on… » Full Story on HowStuffWorks
