In this article, I will say that the advantage of fasting can be separated to be some aspect although the command of fasting is a must without those causes...
Health
Although the rule in Islam fasting is the have-to-do activity but based on several research, this will give good effect on our body in positive side. By fasting, our body part for food processing is stop. This is good for the body health because by stop the food processor, the blood system will do the other activity for example for our brain process. Furthermore, this will improve the brain capability.
(In ramadhan fasting, remember this....)
Psychology
In other case, by fasting, it will make our behavior became wiser. I can not explain why it is happen exactly because I am not a psychologist. I always feel that change in myself when fasting as other people feel too. I feel calm and I don’t think much more other what I do now (for example). However, in my holy Quran, it says that by fasting, it will make us feel calm and I fully prove that!!!!
Socio Cultural
By fasting, we can feel how the poor people feel when they can eat because they don’t have money. This effect me us to be more sensitive to our around and our neighbor condition.
There is no doubt that fasting is useless, so why we don’t do the Sunnah Fasting , lets make the fasting to be hobby of our most like!!!