Why do I keep getting altitude sickness @ high altitudes. I'm in good physical shape and have a heart rate of an athlete.?

Fitness is unrelated. Unfortunately, altitude sickness effects people quite variably, with some people highly susceptible. Vulnerability to altitude sickness is not affected by level of physical conditioning. Medications can be very helpful, including Nifedipine and dexamethasone, but these have to be chosen carefully depending on any other health issues that you may have. Gradual ascent is the only certain prevention.

Related Questions

Is breathing or heart rate faster for people living at high altitudes?

Not necessarily. Usually one's breathing and heart rate will be increased initially when moving to a higher altitude. But if one stays more than a few days it should start to decrease and go down as one gets used to being at a higher altitude. Read more...

I always lived in low altitude but moved to co 6 mo ago. Is it possible I'm still adjusting to the altitude difference? My resting heart rate is 95bpm

Yes. If you haven't been exercising regularly, you're body may not be used to the new altitude when it exerts itself. Check with your doctor, to make sure you're not anemic, or haven't developed another cause of a slightly faster heart rate. Read more...

How accurate are heart rate monitors in altitude?

Normal action. Require moisture for good contact just as at low altitude and can misfunction in cold temperatures which is more likely at high altitude. Read more...