Walter Hess is awarded the 1949 Nobel Prize in Physiology or Medicine for his discovery of the functional organization of the diencephalon as a coordinator of the activities of the internal organs. Since the 1930´s he maps the parts of the diencephalon using cats and dogs.

Walter Hess graduates from the Gymnasium at Frauenfeld in 1900.

Walter Hess is born as the second of three children to his parents Clemens and Gertrud Hess (née Fischer) in Frauenfeld, Switzerland.

Walter Hess develops the "Hess screen".

In 1917 Walter Hess becomes Director of the Physiological Institute at Zurich. Short time later he´s promoted to professor of Physiology at the University of Zurich. He holds this position until his retirement in 1951.

From 1912 until 1917 Walter Hess works as an assistant in physiology under Professor Justus Gaule at Zurich University. During this time he spends one year at the Physiological Institute of the University of Bonn, where he works under Professor Max Verworn.

Walter Hess starts studying medicine in Lausanne in 1900. During his studies he visits the Universities of Berne, Berlin, Kiel and Zurich, where he gains his Doctor of Medicine in 1906.

After his retirement in 1951 Walter Hess continues his brain researches at the University of Zurich. In 1973 he dies of heart failure at the age of 92 in Locarno.

After his examination Walter Hess becomes an assistant in surgery and finally a ophthalmologist with his own private practice in Rapperswil.

During his studies Walter Hess develops a viscosimeter to measure blood viscosity.

During the time at Rapperswil, Walter Hess and Louise Sandmeier get married. They have two children, Gertrud Hess is born in 1910 and Rudolf Max Hess in 1913.