Hematopoietic stem cell (HSC) research over the past century has shown that leukemia may be driven by an invisible hand of inflammation. The bone marrow and inflammation, then, may hold the keys to preventing blood cancers, according to John E. Dick’s plenary session at the 2026 Korean Society of Hematology International Conference (ICKSH 2026), held March 26, 2026. Work in Dick’s lab has found acute myeloid leukemia (AML) HSCs that harbor preleukemic mutations long before any disease diagnosis. These insights have enabled predictive models that could identify individuals at elevated AML risk years before the onset of outright disease, opening the door to new prevention strategies.