When it comes to organ donation, time is everything. As soon as an organ has been carefully removed from a donor’s body, it starts to deteriorate. Surgeons have a matter of hours to get it into a recipient.
Source: [MIT Tech Review](https://www.technologyreview.com/2026/07/23/1140765/supercooled-kidneys-have-been-transplanted-into-pigs-in-a-landmark-achievement/)