FOXO3 (Forkhead Box O3): FOXO3 is a transcription factor that plays a key role in regulating genes involved in cell cycle arrest, DNA repair, and apoptosis. It is an important player in the study of longevity and age-related diseases, influencing pathways that affect the aging process. In aging research, FOXO3 stands out as a central factor, with scientists working to understand its role in the complex mechanisms of life and aging.