"Unraveling the Mystery of 4400 Well-Preserved Brains, Some Over 12000 Years Old"

Scientists have discovered over 4,400 preserved human brains dating back 12,000 years, shedding light on a new preservation mechanism for the organ. While known methods like dehydration and freezing can preserve brains up to 4,000 years old, the discovery of older brains is rare. The brains, found discolored and shrunken, suggest an unknown preservation process specific to the central nervous system. This finding could provide insights into neurological disorders, ancient cognition, and the evolution of nervous tissues. Ethical concerns are addressed through regulations, but the discovery has sparked varied reactions on social media.