Daily services constitute only a small part of an Ethiopian Orthodox Christian's religious observance. Several holy days require prolonged services, singing and dancing, and feasting. An important religious requirement, however, is the keeping of fast days, during which adherents abstain from consuming meat and animal products, and refrain from sexual activity. All devout believers are to maintain the full schedule of fasts, comprising at least 250 days a year apart from other forms of fasting purely left to individual decision of the faithful.