Changes in appetite and metabolism can affect how tumors develop, how they progress, and overall patient prognosis. Peptide hormones are small signaling molecules that help organs communicate and coordinate whole-body metabolism. Recent computational studies suggest that the brain may produce many more peptides than previously recognized—yet for most of these, we still do not know what they do, where they act, or how they work together. Dr. Li aims to identify new peptide signals produced by the brain and determine how they affect appetite and regulate metabolism. This work may reveal new brain-body signaling pathways that could ultimately help support cancer treatment and improve patient well-being. Dr. Li received her PhD from Stanford University, Stanford, and her BS from Peking University, Beijing.