offer expiation (kaffara) by freeing a slave, or feeding or clothing ten needy people with the average of what is needed for one's own family, or if neither of those can be done then a fast for three days is prescribed instead. Beginning and ending In accordance with traditions handed down from Muhammad, Muslims eat a pre-dawn meal called suhur. All eating and drinking must be finished before the adhan for fajr, the pre-dawn call to prayer. Unlike the zuhr and maghrib prayer, which have clear astronomical definitions (afternoon and after sunset), there are several definitions used in practice for the timing of "true dawn" (al-fajr al-ṣādiq), as mentioned in the hadith. These range from when the center of the sun is 12 to 21 degrees below the horizon which equates to about 40 to 60 minutes before civil dawn. There are no restrictions on the morning meal other than those of Islamic dietary laws. After completing the suhur, Muslims recite the fajr prayer. No food or beverage can be taken after suhur. Water can enter the mouth, but not be swallowed, during wudu. The meal eaten to end the fast is known as iftar. Muslims break the fast with dates and water after the maghrib prayer, after which they might eat a more wholesome meal. Spiritual aspect Fasting has been prescribed to all Muslims as a form of religious obligation for overcoming their lust and desires within a reasonable limit so that one can control oneself and prevent becoming a slave to their appetites. The Qur'an states that if humans cannot prevent themselves from desires then they cannot achieve salvation. Muslims abstain from a permissible norm of daily life due to the command of Allah so it strengthens one's self-control and increases consciousness of the Lord. It is not prescribed as a punishment for people or to inflict burdensome practices. It is a moral and spiritual training whose underlying idea is to teach moderation and spiritual discipline so that human temptations do not surpass the moral disciplines implemented in Islam. Furthermore, fasting is mandatory for only a definite period of time and does not promote total renunciation from the appetite of the flesh. Eating, drinking, and sexual intercourse become permissible for a human at the end of the fast. Therefore, Islamic fasting aims at promoting proper limits within its natural bounds. Health effects Islamic fasting, as a time-restricted eating