Watch it. Just watch it (Netflix) Ex Gurkha and latterly SF with the underwater knife fighters climbs 14 of the tallest mountains in under 7 months. Hero.
He’s a good lad, my brother was a medic on one of their tours for 6 weeks, many moons ago. He doesn’t mention anywhere in the documentary that he gets1% lactic acid build up compared to the average human, hence when he did selection, he was smashing the hill phases/Breacon. Nails dude mentally.
Interesting that climbing Everest has become a bucket list item. 100's of climbers being sherpered up each spring.