Reviving Brain Activity After ‘Cryosleep’ Inches Closer in Pioneering Study Rebooting frozen brains is still science fiction, but advanced freezing techniques could preserve wiring and function. Image Credit Shawn Day on Unsplash Share Floating in a warm, nutritious bath, the slices of mouse brain buzzed with electrical activity. Researchers gave them a few zaps, and parts of the hippocampus stren...