In 1976, areas of the great mountain regions remained unknown and acute mountain sickness was a medical mystery waiting to be explored. Into this arena stepped the Birmingham Medical Research Expeditionary Society. It was formed by a group of young doctors at the Queen Elizabeth Hospital, Birmingham, and its members were looking for excitement. They were inquisitive, energetic and fearless. Having gathered ideas and borrowed some medical equipment, they took a plane to Kathmandu. From there they trekked to the north side of Annapurna, exploring and testing the effects of low oxygen levels on their bodies and minds. there has been a further twelve expeditions since, all investigating the effects of low oxygen on the human body. This book is a recollection of those expeditions.