It has been announced that the world’s first head transplant surgery is scheduled for December of this year, a surgery that could be a turning point for modern medicine and people alike. The surgery is set to be preformed on Valery Spiridonov, who has Werdnig-Hoffmann disease which leaves him unable to stand or walk.

The surgery, that is estimated to be at least $10 million, will last for approximately 36 hours. The condensed plan of the surgery from A Person Who is Not Very Scientific is that the doctors, Sergio Canavero and Xiaoping Ren, will cool Spiridonov’s body to 50 degrees Fahrenheit, and cut off the heads of Spiridonov and the donor at the exact same time. Then the doctors will somehow connect the spinal cord and nerves from Spiridonov’s head to the donor body.

Many transplants like this have been done with animals, but most have failed and many are skeptical of the upcoming risky procedure.