Stress leads to multiple changes in the physiology of the cell. One of the most important is the adaptation of the cell cycle to the changing conditions of the environment. Cellular responses after stress can be followed by cellular synchronization previous to the insult. In this chapter, we use centrifugal elutriation to synchronize Schizosaccharomyces pombe cells and outline methods to investigate the hallmarks of cell cycle progression upon stress. These include analyses of cyclin-dependent kinase phosphorylation and cell size change. 