The Zoist: A Journal of Cerebral Physiology & Mesmerism, and Their Applications to Human Welfare was a British journal, devoted to the promotion of the theories and practices (and the collection and dissemination of reports of the applications) of the pseudoscientific concepts of mesmerism and phrenology, and the enterprise of "connecting and harmonizing practical science with little understood laws governing the mental structure of man". The name derived from the Greek word Zoe (ζωή) meaning "life". The Zoist was published quarterly, without a break, for fifteen years: from March 1843 until January 1856.