I am a muslim and it is fasting month nowadays :) as a muslim people around the world need to fast. Probs people from another religions will think it's kinda dumb to be hungry all day but actually we do that because we love our God too much. He told us to fast because the most important consideration in undertaking a fast, as in any act of devotion, is to seek nearness to God, and seek His pleasure and Forgiveness. This itself generates a spirit of piety in man. Fasting makes us deeply conscious of the pangs of hunger and discomfort suffered by the less fortunate among our brethren. They have to put up with difficult conditions all through their lives. It thus kindles in man a spirit of sacrifice leading to change towards his suffering brethren. :)