Sherpa people
Andrew James Murray is a British physiologist focused on mitochondria and the effects on their function of athletic condition, high altitude, disease, diet, and age. His work has included studies of the adaptations of the Sherpa people to high altitude, loss of appetite in mountain climbers, the negative cognitive effects of high-fat diets, and the development of ketone ester dietary supplements marketed by American company HVMN that have been claimed to enhance athletic performance.