"fast during Ramadan"
by cm

Creative Commons AttributionRamadan - Credit: Capture QueenTM, Flickr
  Ramadan is a period of fasting that takes place in the ninth month of the Islamic Lunar calendar.  Muslims are not permitted to eat, drink or smoke between sunrise and sunset.  Sex and chewing gum are also forbidden.  As well as fasting, muslims are expected to pray more than usual, and avoid anything that may detract from purity of thought.  Ramadan is intended to focus the muslim mind away from worldly concerns and towards God.