A sanitarium is a medical facility designed for the treatment of individuals with chronic illnesses, particularly those related to mental health or tuberculosis. These institutions often provide a peaceful environment where patients can receive specialized care, therapy, and rehabilitation. The focus is on holistic healing, combining medical treatment with rest and recreational activities. Historically, sanitariums gained popularity in the late 19th and early 20th centuries, especially for treating tuberculosis, as fresh air and a calm atmosphere were believed to aid recovery. Today, the term is less commonly used, with many facilities now referred to as mental health hospitals or rehabilitation centers.