n page 803, Gourlay et al. report the first evidence that the actin cytoskeleton can affect release of reactive oxygen species (ROS) by mitochondria, and thus life span in yeast. Certain mutant Saccharo-myces cerevisiae strains with alleles that reduce actin dynamics possess defective mitochondria. The team O Cells with increased actin dynamics live longer. went on to show that such strains dis...