I recently read issues of 2 research journals that collectively must hold some kind of scientific publishing record. The first journal, Pharmacogenomics, printed 14 papers back-to-back, all devoted to a single, large-scale study: discovering the genetics of chronic fatigue syndrome (CFS). By contrast, the journal Nature was more typical, printing single articles that described mostly research from single studies, and 1 that listed more than 100 authors. These authors are part of the Allen Brain Project, which consists of dozens of scientists who are mapping gene expression profiles of the mouse brain. By the time I finished reading about these monumental efforts, my head ached.