Keep in mind before visiting mountainous Mexico

[datgnat]

Interesting post. We've had friends and family visit, and we make sure to caution those with known health issues (heart, lung and, heh, age), and tell all visitors to be aware that they won't be getting as much O2 into the bloodstream, though true 'altitude sickness' doesn't really seem to be a problem (for most people) until around 8k ft

https://en.wikipedia.org/wiki/Altitude_sickness