Observations on Trance: Or Human Hibernation is a book written by James Braid in 1850. Braid was a Scottish surgeon and hypnotist who is credited with coining the term ""hypnosis."" In this book, Braid describes his observations and experiments with the phenomenon of trance, which he believed to be a form of hibernation in humans. Braid's work is based on his study of individuals who appeared to be in a state of deep sleep or unconsciousness but were...