Is death by guillotine painless?Roger Kryson:

Death by guillotine would be painless because it immediately severs the nerves from your spinal cord to brain. The clean cut would paralyze you after severing your vertebrae, so pain receptors would no longer send signals as your nerves are severed and your body is non-functional. This is, of course, assuming you’re alive after having your head completely chopped off by a 10-pound blade accelerating at speeds of 40 mph, which you wouldn't be. You wouldn't even feel the cold touch of the blade as it sliced into your neck hair; it would be too fast.

For those saying that spasms have been witnessed after execution by guillotine, it should be noted that spasms such as involuntary jerks, eye fluttering, and twitches can occur up to five minutes after death. This is because the brain suffocates, but it does not mean the presence of pain is there. Many people who pass away naturally and painlessly in a hospital bed will twitch, their eyes flutter, and even have bowel movements minutes after death. Once you are dead, you can't “feel” anything, including pain. As for studies mentioned about brain activity continuing in rats after severing of the head, the same goes. Brain activity can still be present after death, but that does not mean the subject is alive, nor [does it have] the defined senses of feeling.

The guillotine was such an effective fear-mongering tool because it didn't focus on pain and suffering, but rather punishment. The idea was you're going to literally just be wiped off the face of the Earth for your crime—you're not even going to be allowed the few extra minutes of torture. The idea of dwelling in a dark cave before being escorted out blindfolded, having your neck placed on a board with a bucket to catch your severed head, and being executed by the drop of the blade and nothing else … it's a jarring realization of just how unsympathetic death is.

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