Twenty years after the introduction of the theory, we revisit what it does—and doesn’t—explain. by Clayton M. Christensen, Michael E. Raynor and Rory McDonald Please enjoy this HBR Classic. Clayton M.

The FDA approved imlunestrant for treatment of certain adults with breast cancer who experience disease progression after at least one prior line of endocrine therapy.

Sep. 4, 2025 — Scientists at the University of Bath have developed a simple three-minute brainwave test called Fastball EEG that can detect memory problems years before Alzheimer’s is typically ...