Wilhelm Fliess

Wilhelm Fliess
Wilhelm Fließ
Fliess (right) and Sigmund Freud
in the early 1890s.
Born24 October 1858
Died13 October 1928 (aged 69)
Berlin, Province of Brandenburg, Germany
NationalityPrussian
Scientific career
FieldsOtolaryngology

Wilhelm Fliess (German: Wilhelm Fließ; 24 October 1858 – 13 October 1928) was a German otolaryngologist who practised in Berlin. He developed the pseudoscientific theory of human biorhythms and a possible nasogenital connection that have not been accepted by modern scientists. He is today best remembered for his close friendship and theoretical collaboration with Sigmund Freud, a controversial chapter in the history of psychoanalysis.