In 1907 Binswanger received his medical degree from the University of Zurich. As a young man he worked and studied with some of the greatest psychiatrists of the era, such as Carl Jung, Eugen Bleuler and Sigmund Freud. He visited Freud (who had cited his uncle Otto's work on Neurasthenia) in 1907 alongside Jung, approvingly noting his host's "distaste for all formality and etiquette, his personal charm, his simplicity, casual openness and goodness". The two men became lifelong friends, Freud finding Binswanger's 1912 illness "particularly painful", and Binswanger offering Freud a refuge in Switzerland in 1938.