priest who celebrates the Most Holy Eucharist two or three times on the same day can take something before the second or third celebration even if there is less than one hour between them. §3. The elderly, the infirm, and those who care for them can receive the Most Holy Eucharist even if they have eaten something within the preceding hour. Eastern Catholic Churches The rules regarding fasting, prayer and other works of piety are set by each church sui iuris and the faithful should follow those rules wherever taking Communion. The rules of the Eastern Catholic Churches of Byzantine tradition correspond to those of the Eastern Orthodox Church, as detailed in the next section. Eastern Orthodox practice Eastern Orthodox Christians are required to fast from all food and drink and abstain from marital relations in preparation for receiving the eucharist. The fast commences, depending on local custom, no later than when the retiring to sleep the preceding evening and no later than midnight, or even from vespers or sunset the night before. The abstinence from marital relations extends through the preceding day (for which reason married priests may not celebrate the divine liturgy daily), and in some places (notably in Russia), a married priest sleeps in a separate bed from his wife the night before celebrating the liturgy. Fasting in monastic practice is often more strict. During this fasting period, many faithful keep a period of quiet reflection by, for example, abstaining from or limiting television and other entertainment, and by reading devotional literature. Fasting is relaxed for pregnant and nursing women, the ill, the elderly, and young children. It is a matter of some controversy whether or not a menstruating woman may receive the eucharist, with very traditional churches not allowing her to even enter the nave of the church or receive any of the sacraments except on her deathbed, while other churches may totally disregard this custom. Likewise, a man who is bleeding, for instance from a recently extracted tooth, also may not commune. One who communes infrequently must go to confession beforehand, while one who communes on a regular basis does confess, but the frequency varies by local custom and whatnot. However, for those who are mentally or physically incapable of communicating their sins to a priest, absolution is given without confessing, and for babies and young children even absolution is dispensed with. Additional Russian practices