Dame Frances Ashcroft is a prominent British physiologist known for her groundbreaking research on the role of ion channels in cells. She has made significant contributions to our understanding of how these channels affect insulin secretion and the regulation of blood sugar levels, which is crucial for managing conditions like diabetes. In recognition of her work, Ashcroft has received numerous awards, including being elected a Fellow of the Royal Society. She has also been honored with a Damehood for her services to science, highlighting her influence in the field of medical research and her commitment to advancing our knowledge of human health.