Hi all, I am wondering about people's experience with AMS changing over time.

How many of you have had successful completely AMS-free hikes, but later went to a similar altitude and felt symptoms?

Were your conditions different? (e.g. were you recovering from a cold)
Were you able to help your symptoms with water, etc?


Just curious. I have never felt AMS, even when arriving without acclimatization such as arriving in Colorado and immediately driving to peak of Pike's, or driving 4 wheel trails in Breckenridge and running about at 12K ft totally out of breath, but headache-free.

So I wonder if it is still out there waiting for me someday, or if I somehow have the innards that can deal with it (at least to 14,500 feet, which I've reached about 1/2 dozen times).

Also, has anyone heard of a link between iron intake/ anemia and AMS effects?

Curious for myself and also for the whole family as we prep for our July hike (still hoping for walk-in permits!)