Reprogramming is a research area in the field of stem cell biology and regenerative medicine that focuses on the ability to convert one cell type into another. This process involves resetting the molecular and genetic characteristics of a cell so that it can differentiate into a different cell type. Reprogramming techniques have been used to transform adult cells into induced pluripotent stem cells (iPSCs), which have the potential to differentiate into any cell type in the body. This research area has significant implications for the study of development, disease modeling, and potential therapeutic applications.