Editing Tycho Brahe (section)

===Work in medicine, alchemy and astrology===
Tycho worked in medicine and alchemy. He was influenced by the Swiss physician [[Paracelsus]], who considered the human body to be directly affected by celestial bodies.{{sfn|Christianson|1979}} Tycho used Paracelsus's ideas to connect empiricism and natural science, and religion and astrology.{{sfn|Almási|2013}} Using his [[Kitchen_garden#Herb_garden|herbal garden]] at Uraniborg, Tycho produced recipes for herbal medicines, and used them to treat fever and plague.{{sfn|Figala|1972}} His herbal medicines were in use until the end of the 19th century.{{sfn|Kragh|2005|p=243}} 

The expression ''[[Tycho Brahe days]]'' referred to "unlucky days" that were featured in almanacs from the 1700s onwards, but which have no direct connection to Tycho or his work.{{sfn|Thoren|Christianson|1990|p=215}} Whether because Tycho realized that astrology was not an empirical science, or because he feared religious repercussions, he did not publicise his own astrological work. For example, two of his more astrological treatises, one on weather predictions and an almanac, were published in the names of his assistants, in spite of the fact that he worked on them personally. Some scholars have argued that he lost faith in horoscope astrology over the course of his career,{{sfn|Thoren|Christianson|1990|pp=215–216}} and others that he simply changed his public communication on the topic as he realized that connections with astrology could influence the reception of his empirical astronomical work.{{sfn|Almási|2013}}