Dr. Graham McGinnis (Kinesiology and Nutrition Sciences) and his former doctoral student Dr. Michael Dial (Ohio State University), along with other members of the Exercise Physiology and Integrated Chronobiology Lab published an article titled, "Social jetlag alters markers of exercise-induced mitochondrial adaptations in the heart," in the journal npj Biological Timing and Sleep. In this article, they found that exercise training induces expression of proteins related to mitochondrial dynamics (fission and fusion), and that social jetlag prevented this effect. These findings implicate circadian rhythm disruption via social jetlag as a possible cause of impaired cardiac mitochondrial quality control.