Fasting during Ramadan
Fasting during Ramadan, known as sawm in Arabic, is an obligatory pillar of Islam for healthy adult Muslims, requiring abstinence from food, drink, smoking, sexual intercourse, and intentional vomiting from dawn (fajr) until sunset (maghrib) each day of the lunar month of Ramadan.[1][2] This practice, prescribed in the Quran (Surah Al-Baqarah 2:183-185), aims to foster taqwa (God-consciousness and self-restraint) through physical and spiritual discipline.[1][3] The fast begins with the sighting of the new moon marking Ramadan's start and ends similarly for Eid al-Fitr, varying annually by 10-11 days on the Gregorian calendar due to the lunar Hijri system.[4] Observant Muslims break the fast at sunset with iftar, often starting with dates and water, emulating the Prophet Muhammad's tradition, followed by communal prayers and meals.[4] Exemptions apply to those who are ill, traveling, menstruating, pregnant, breastfeeding, elderly, or pre-pubescent, with provisions to make up missed days later or provide fidya (compensation) in cases of permanent inability.[5][6] Empirical studies on health effects reveal mixed outcomes: short-term weight loss of 0.8-1.4 kg and potential benefits like improved blood pressure and immune function in healthy individuals, though risks of hypoglycemia, dehydration, and complications arise for those with diabetes, cardiovascular disease, or during pregnancy.[7][8][9] Peer-reviewed research indicates no uniform detriment to kidney function or overall wellbeing in compliant fasters, but emphasizes pre-Ramadan medical consultation for at-risk groups to mitigate adverse causal pathways like electrolyte imbalance.[9][10] Controversies include debates over exemptions' application, with some women fasting despite pregnancy risks, and varying scholarly interpretations on conditions like mild illness.[11][12]