Caudwell Xtreme Everest
This was a complex medical research expedition studying the effects of altitude on the human body, in particular on the level of oxygen in arterial blood. More than 200 subjects were studied at a range of altitudes from sea level (in the UK) via Kathmandu, Namche Bazar, Pheriche, Base Camp to (just below) the summit of Mount Everest (8,850m) which was reached by 8 doctors, 2 cameramen and 15 Sherpas. The results will take many months to analyse, but, combined with the Study carried out in 05/15 will provide valuable data for future individuals suffering the effects of low oxygen levels, be it due to illness or ascent to high altitude.