An Italian neurosurgeon says it is possible to transplant human heads from one body to another to extend the lives of people whose muscles and nerves have deteriorated or whose organs are riddled with cancer. Sergio Canavero said several people have already volunteered for a head transplant — which he says he could perform in 2017 — after he tests the procedure with brain-dead organ donors. Canavero, a member of the Turin Advanced Neuromodulation Group, detailed the surgery in the journal Surgical Neurology International earlier this month. “The greatest technical hurdle to is of course the reconnection of the donor’s and recipient’s spinal cords,” he said in the paper. “It is my contention that the technology only now exists for such linkage.” He said a sharp severing of the spinal cord and the use of modern adhesives and sealants are the keys to success. He discovered the importance of a clean cut as he reviewed cases of sharp wounds in the cords of patients who spontaneously recovered from paralysis. More via National Post.