José Fernández-Martínez graduated in Biochemistry in 2017 and mastered Biotechnology in 2019 at the University of Granada. In January 2018, José Fernández-Martínez joined the research group “CTS-101: Intercellular communication” (University of Granada), directed by Dr. Darío Acuña Castroviejo. Here, José Fernández-Martínez had his first training contract funded by the Youth Guarantee Program and the European Social Fund (January 2018–July 2019). At present, José Fernández-Martínez continues to work with this group while writing his thesis, “Mechanisms of sarcopenia: connection between chronodisruption, inflammation, mitochondrial dysfunction and muscle loss in aging”, directed by Dr. Darío Acuña Castroviejo and funded by the Spanish Government (FPU).