If you’re heading to Cusco, you probably know that it’s at high altitude – 11,200 feet, or 3,400 m. Not Mt. Everest-type high, but enough that perhaps 50% of people will feel some altitude sickness symptoms if they arrive in Cusco without spending a few days (or more) at intermediate altitudes to let their bodies acclimatize! So what is altitude sickness? In Cusco, for most people, it’s just a headache — maybe a nasty one[…]
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