"Reversibly cryopreserving large human organs, such as hearts or kidneys, is more difficult than preserving cells but is an active area of research with important public health benefits, since it would greatly increase the supply of organs for transplant. Researchers have made progress in this area, successfully cryopreserving and later transplanting sheep ovaries and rat limbs, and routinely recovering rabbit kidneys after cooling to -45 °C. Efforts to improve these technologies provide indirect support for the idea that the brain, like any other organ, may be adequately cryopreserved by current methods or methods under development." Via @[588732176:2048:Christine Peterson]