Mesmerism
Franz Anton Mesmer's doctrine that an invisible universal fluid flows through all bodies, that illness results from its obstruction, and that a…
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Franz Anton Mesmer's doctrine that an invisible universal fluid flows through all bodies, that illness results from its obstruction, and that a…
The sale of radioactive substances as general health tonics in the first decades of the twentieth century. Radium was added to water, ointments,…
The doctrine that waste retained in the large intestine putrefies and poisons the body, causing a wide range of unrelated diseases. It was mainstream…
The belief that peptic ulcers are caused by stress, personality and diet, and that they are a chronic condition to be managed rather than cured. Most…
The belief that a female's offspring can inherit characteristics from a male she mated with previously, even when he did not father them. It is…
The doctrine that an organism exists fully formed in miniature within the egg or the sperm, and that development is merely the enlargement of a…
The agricultural biology of Trofim Lysenko, adopted as official Soviet doctrine from the 1930s to the mid-1960s, which rejected genetics as a…
Ernst Haeckel's claim that an embryo passes through the adult forms of its ancestors as it develops, summarised as the slogan that ontogeny…
A planet proposed to orbit between Mercury and the Sun, invoked to explain an anomaly in Mercury's orbit, searched for over half a century, and shown…
A form of radiation announced in 1903 by the French physicist Prosper-René Blondlot, investigated in dozens of laboratories, described in around…