Fasting is the willful abstinence from some or all food, drink, or both for a period of time. An absolute fast involves abstaining from all food and liquids for a defined period, usually a single day or several daytime periods. Other partial fasts may restrict certain foods like meat. Fasting practices exist in many religions and spiritual traditions and may include abstaining from other activities besides food. Examples described in the text include fasting in the Bahá'í Faith from sunrise to sunset during a certain month, monks in Buddhism not eating after noon, Lenten fasting in Christianity, and fasting by religious figures like Moses, Jesus, and Cesar Chavez for spiritual reasons.