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Health

Mouse brain slices brought back to life after being frozen for a week

In a step towards suspended animation of people, slices of mouse brains have shown near-normal activity after being stored at -150°C for up to a week

By Michael Le Page

13 February 2025

Reviving samples of mouse brain could bring us closer to freezing whole brains

BSIP SA / Alamy

Slices of mouse brain that were kept at -150°C for up to a week have shown near-normal electrical activity after being warmed up. The results could take us a step closer towards cooling and reviving entire brains for purposes such as putting people in suspended animation for space flights.

“At the moment, it is not possible, but I think there are existing techniques that can be combined to achieve this, and there is room for careful optimism,” says Alexander German at…

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