Mountain trekking

On a Friday we had an unexpected visit at school. A woman and his father had come to share there experience at one of the mountains of the Himalayas. Even though it being a 5000m mountain they climbed the pressure was still low making the woman ill and having to evacuate with a helicopter.
(We were all impressed she was about to die). Her father also talked us about the top five highest mountains .nd where they were. (In Spanish).