The Forgotten Mental Disorder of Calenture

Calenture is a term that was historically used to describe a mental disorder that was believed to affect sailors who had been at sea for long periods of time. It was characterized by delusions and hallucinations, and was thought to be caused by the prolonged exposure to the heat and humidity of the tropics.

The symptoms of calenture were said to include vivid dreams and visions, as well as a sense of euphoria or excitement. Some sailors who suffered from calenture believed that they had been transported to a magical or exotic place, or that they had been given special powers or abilities. In extreme cases, calenture could lead to violent behavior or even suicide.

The concept of calenture was first described by physicians in the 17th and 18th centuries, during the height of the Age of Exploration. At that time, it was believed to be a distinct medical condition that was caused by the exposure to the hot and humid climates of the tropics. However, modern medical experts now believe that calenture was likely a form of psychosis or delirium that was brought on by the stress and discomfort of long sea voyages, rather than by any specific medical condition.

Today, the term "calenture" is no longer used in modern medicine, and it is largely considered to be a historical footnote. However, the concept of calenture remains an interesting example of how our understanding of mental health and illness has evolved over time.