New Discoveries Blur the Line Between Life and Death

Scientists have revived cellular functions in a severed pig's brain using a cocktail of preserving agents, challenging previous notions about brain death. This research, led by Yale neuroscientist Zvonimir Vrselja, could have significant implications for reanimating human brains, though it raises ethical concerns about the definition of death. The technique, which prevents brain damage from oxygen-rich blood post-mortem, is also being explored for treating neurodegenerative diseases and extending the viability of donor organs.