Schematic of HR experiments. Top shows control hypoxia and reoxygenation. Below is the hypoxic preconditioning (PC) protocol, survival for these two timelines shown in panel B. Third from the top shows FCCP treatment protocol, calculated protection shown in panel C. Fourth and fifth from the top show light treatment protocol + and - PC, Calculated protection data from these protocols shown in panel D. Bottom shows light treatment during hypoxia, calculated protection data from these protocols shown in panel E. 