In fact, Ramadan fasting would be an ideal recommendation for treatment of mild to moderate, stable, non-insulin diabetes, obesity and essential hypertension. In 1994, the first International Congress on Health and Ramadan , held in Casablanca, had 50 research papers from all over the world, from Muslim and non-Muslim researchers who have done extensive studies on the medical ethics of fasting. On the other hand, patients who are suffering from severe diseases, whether diabetes or coronary artery disease, kidney stones, etc., are exempt from fasting and should not try to fast. There are psychological effects of fasting as well. There is peace and tranquillity for those who fast during the month of Ramadan.
Personal hostility is at a minimum, and the crime rate decreases.
This psychological improvement could be related to better stabilization of blood glucose during fasting as hypoglycemia after eating, aggravates behaviour changes. There is a beneficial effect of extra prayer at night. This not only helps with better utilization of food but also helps in output. There are 10 extra calories output for each Rakat of the prayer. Again, we do not do prayers for exercise, but a mild movement of the joints with extra calorie utilization is a better form of exercise.