Mountaineering

For many adventurers, scaling Mount Everest is an endurance test like no other. For the Sherpas, it’s all in a day’s work. After all, they routinely set the record for the fastest and most ascents. So how do they do it? According to a new study, the answer could literally be in their blood.​

In order to treat chronic obstructive pulmonary disease, Smiths Medical and University College London have resurrected the sidelined closed-circuit breathing system designed for a failed Everest expedition over 50 years ago.