In the history of Islam, knowledge about health has received a lot of attention. In Islam, health is an advantage and a prelude to perfection. On the other hand, the impact of religion on health, especially spiritual and mental health, has been emphasized several times and the importance of health, sanitation, and their impact on the life in this world and afterlife has been frequently mentioned. It should be noted that the purpose of materialistic and spiritual health is not the health itself. Rather, there is a much sublime objective; that is, all dimensions of health should be used to move toward divine satisfaction. Perhaps no religion is similar to Islam in terms of encouraging its followers to gain knowledge, think, and do research. In history, numerous examples of the association between Islam and science can be found. For example, in Alagh Surah, Go says, “ We [gradually] taught humans what they did not know. ” Or in Mojadelah Surah he says, “ God will give high rankings to those of you who have turned to Islam and those who are scientists. ” These two examples illustrate the importance of science in Islam. The same attention to science can be detected in hadiths and the words of religious leaders. The prophet of Islam (peace be upon him) says, “ On the day of gathering, martyrs’ blood is evaluated in light of scientists’ pen and handwriting and scientists’ pen is superior than martyrs’ blood” (1). In Nahjolbalagheh, Imam Ali (peace be upon him) says, “ Goodness is not in having a lot of property or children. Rather, goodness is equal to having a lot of knowledge” (2). Imam Bagher (peace be upon him) says, “ A useful scientist in the society is more valuable than the worship of 70, 000 devotees” (1). Various verses in Quran (e. g. verse 82 of Nesa Surah and verse 24 of Muhammad Surah), which are about thinking and pondering further support the idea that Islam pays a lot of attention to science. Muslims had a lot of scientific achievements prior to the eighth century. In his book, Will Durant refers to a time when Muslims exported their experiential knowledge on medicine, chemistry, astronomy, botany, and drug to Europe (3). Due to the close association between science and religion, considerable attention should be paid to thinking, pondering, and researching (as recommended by Islam). The holy Quran has highlighted the sublime position of thinkers and scientists in different forms (4-6) and has encouraged humans to think about creation of the world and themselves (7, 8). It has urged humans to follow religion by the use of their logic (9, 10). Studies conducted on the relationship between religion and health can further prove the attention paid to health in religious topics. Moreover, the can shed light on some ambiguities on the position of experiential science according to religion.