Charles ClarkeCharles Clarke is a general consultant neurologist with a special interest in high-altitude medicine, and has been in consultant practice since 1979. Aside from his achievements in medicine, which include producing Neurology: A Queen Square Textbook nd holding the position of Clinical Director of Neurosciences at St Bartholomew’s Hospital, he is also an experienced mountaineer. Having climbed extensively in the Himalaya and been expedition doctor on Chris Bonington’s ascents of the south-west face of Everest in 1975 and the north-east ridge in 1982, he went on to act as President of the British Mountaineering Council from 2006 to 2009. He is a former chair of the Mount Everest Foundation. His experiences have culminated in two memoirs, co-written with Chris Bonington – Tibet’s Secret Mountain and Everest: The Unclimbed Ridge. Read More Read Less