aj's says
I think the answer is "yes". Thats why those who go to high altitudes use oxygen cylinders. It may cause hypoxia (decreased Oxygen in blood) which may result dizziness.
One of the other dangers at high altitudes is Epistaxis (bleeding from nostrils) which is due to sudden exposure to pressure variations.
You can vote each answer up or down to show your support or disapproval. You cannot flag an answer, but if an answer receives enough down votes compared to up votes, then it will become hidden.
