Researchers have developed a groundbreaking stem cell culture method that accurately replicates early human central nervous system (CNS) development. This 3D organoid system mimics brain and spinal cord development, offering new avenues for studying CNS disorders. By utilizing patient-derived stem cells, it holds promise for personalized treatment strategies. Key features include modeling all sections of the embryonic brain and spinal cord simultaneously, potential for personalized medicine, and enhanced understanding of human brain diseases compared to animal models.