| خلاصه مقاله | Health care, hygiene and treatment of diseases of the elderly is one of the most important issues in the history of medicine. Among the remnants of the ancient civilizations of Iran, Egypt, and Mesopotamia, interesting recommendations can be found for the treatment of the elderly, such as many herbal remedies for the treatment of dementia in the elderly. Three thousand years ago, the ancient Iranians cared so much about the elderly that they set a specific day of the year to pay their respects, honor, and give their thanks. After the extinction of the Sassanid Empire and the advent of Islam thanksgiving of the elderly was dedicated to Nowruz, because it was customary in the days of Nowruz to go to the elders for celebration |