At Harvard Medical School and Massachusetts General Hospital, Dr. Rasha Al-attar’s research is at the forefront of advancing heart regeneration and organ transplantation. Initially focusing on stem cell-derived cardiomyocyte (hPSC-CM) transplantation to repair infarcted heart tissue, Dr. Al-attar faced a significant challenge: while immature hPSC-CMs survive freezing, they often induce arrhythmias post-transplantation, limiting their clinical application. To address this, Dr. Al-attar transitioned to her postdoctoral work in Dr. Shannon N. Tessier's lab, where she applies nature-inspired techniques to advance cryopreservation methods. Inspired by freeze-tolerant frogs, her research includes developing techniques to preserve hearts at normothermic levels ex vivo, enabling real-time monitoring of arrhythmias and improving transplantation outcomes. Her work aims to overcome gaps in cryopreservation and organ preservation, enhancing the clinical feasibility of stem cell therapies and addressing key issues in heart regeneration.