South America: Mind the altitude

Due to the high altitude in parts of Bolivia, Peru, Colombia, and Argentina, you may suffer from soroche, or altitude sickness. Symptoms include dizziness, fatigue, and shortness of breath. When you visit areas over 10,000 feet above sea level, take it easy at first. Avoid alcohol and caffeine, drink lots of bottled water and juice to stay hydrated, and rest for at least half a day. Symptoms usually disappear by the second day. If they don’t, consult a doctor, especially if you have a history of high blood pressure. To fight soroche, locals swear by mate de coca, a tea made from the leaves of the coca plant.