Islam is the religion which guides the humans and saves people from ignorance and also leads them to the culmination of wisdom. Moreover, by providing an appropriate background for Muslim thinkers, they can achieve the highest prosperityin all fields of human knowledge thanks to the revelation, remarks of the holy prophet, and guidelines of the Imams. By writing down and expansion of their thoughts, the thinkers can guide their successors. Muslim scientists have paid special attention to medicine, and achieved the highest prosperity and wisdom in it. Considering humans as the noblest creatures, attempts to preserve health of the body and soul was regarded to be of utmost importance. The holy prophet has many obvious remarks for health preservation and relieving physical and psychological illnesses. These points were collected and published in different books, called “Tib al-nabi.” Moreover, there are many quotations from Imams in the field of medicine and health preservation. Some of these remarks are considered in “Nahj al-Balagha” of Imam Ali and some collections called “Tibb-al Sadegh” and “Tibb-al Reza.” In all these texts, great emphasis has been paid on human dignity and preservation of health and well-being. According to Islamic teachings, great Iranian physicians also have considered these concepts in their writings, and have followed these points.