Homonym: Lunacy (Insanity)
Lunacy refers to a historical term used to describe mental illness, particularly when it was believed to be influenced by the phases of the moon. The word originates from the Latin "lunaticus," meaning "moonstruck." In ancient times, people thought that the full moon could cause erratic behavior and madness, leading to the association of mental disorders with lunar cycles.
In modern psychology, the term is largely outdated and considered stigmatizing. Today, mental health conditions are understood through scientific research and are treated with various therapies and medications. The study of mental health has evolved significantly, focusing on biological, psychological, and social factors rather than celestial influences.