Benedictus Premsela studied medicine in Amsterdam, where he sat for his medical finals on 12 April 1913. He set up a practice in Assendelft. From 1918, he lived at 20 Diepenbrockstraat in Amsterdam where he also practised medicine (after 1940, at 796 Prinsengracht).
Benedictus Premsela became particularly famous through his work as a sexologist. In 1925, he started a Consultancy for the promotion…