>>982949Been there, done that.
Honestly, I think you'll be fine if you start preparing about one month in advance.
Altitude sickness is largely genetically conditioned (and even then, you can take acetazolamide to reduce it)
Personally, I come from /fit/ and found that, if anything, all the extra muscle mass I am carrying along was a bit of a nuisance, since it consumes a fair bit of oxygen (which is pretty scarce up there).
Just do cardio for a month (I'd alternate long distance running and hiit for building endurance and VO2max) and I think you have a chance as good as anyone else.
Pd: I can highly recommend it; you will hate yourself while on that mountain, but it sure is a great memory! Then again, consider that it is actually a super expensive experience, and that you can climb taller mountains in the Andes for way less money! Just some food for thought.
