[2] At the age of 10, Muir began her general education at a boarding school in Montreux, Switzerland and at the Downe House in Berkshire, England.

[1] The year after she earned her PhD, she worked as a research fellow at the Sir William Dunn School of Pathology at the University of Oxford.

[3] Albert Neuberger then recruited her into a new group in London in the biochemical division of the National Institute for Medical Research, and she moved to Mill Hill in 1949.

[1][6][7][8] Muir's group at the Kennedy Institute worked discovering the structure and functions of proteoglycans, proteins that make up a large part of cartilage.

[2] She is largely credited with discovering and exploring the varied causes of osteoarthritis and with illuminating the biochemical causes of the condition, which had previously been considered unworthy of study.