A research team in Germany demonstrated restoration of some neuronal activity and cellular functions in vitrified and thawed mouse brains, publishing methods and results in Proceedings of the National Academy of Sciences. The authors used vitrification (an ice‑free cryopreservation technique) combined with a specialized thawing protocol to preserve synaptic activity and metabolic markers in slices and whole brains. The work does not claim recovery of intact cognition or behavior but represents the first demonstration of preserved electrophysiological function after long‑term vitrification, a result that could inform organ banking and neurobiology research.