Acclimatise in bed, climb Everest in half the time

Brooks Entwisle demonstrating the use of a pre-acclimatisation tent in his home in Singapore, as part of his training for his attempt to summit Mount Everest.-AFP

Kathmandu (AFP) - As other Everest hopefuls were trudging up to base camp in April, Singapore-based Brooks Entwistle was at home, planning his daughter's 13th birthday party and preparing for his company's annual general meeting.

But at night he would climb into a hypoxic, or low oxygen, tent meant to mimic the thin air at high altitude.