Summary: levels Day 3 had seen us climb to 5200m with the first 1 oxygen reduction but by now the body was adjusting to the point where it felt no different from how a simulated 4500m had Then On To The Summit of Kili The second week saw an immediate drop to 10 saturation levels which is like being on top of Kilimanjaro at 5800m After the first day at this level I could
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